Home / 15,513.16-21,406.98-8,797.24

Finding the Fourth Proportional to 15,513.16, 21,406.98 and 8,797.24

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Solution

The fourth proportional to 15,513.16, 21,406.98 and 8,797.24 is: 12,139.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,513.16 : 21,406.98 = 8,797.24 : x
  2. Step 2: Convert to fraction form
    15,513.16/21,406.98 = 8,797.24/x
  3. Step 3: Cross multiply
    15,513.16x = 21,406.98 × 8,797.24
  4. Step 4: Simplify right side
    15,513.16x = 188,322,340.74
  5. Step 5: Solve for x
    x = 188,322,340.74/15,513.16
  6. Step 6: Final answer
    x = 12,139.52

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Half scale
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Double scale
Find fourth proportional to 15,514.16, 21,408.36 and 8,798.24
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.