Home / 15,298.34-21,116.16-9,993.92

Finding the Fourth Proportional to 15,298.34, 21,116.16 and 9,993.92

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Solution

The fourth proportional to 15,298.34, 21,116.16 and 9,993.92 is: 13,794.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,298.34 : 21,116.16 = 9,993.92 : x
  2. Step 2: Convert to fraction form
    15,298.34/21,116.16 = 9,993.92/x
  3. Step 3: Cross multiply
    15,298.34x = 21,116.16 × 9,993.92
  4. Step 4: Simplify right side
    15,298.34x = 211,033,108.17
  5. Step 5: Solve for x
    x = 211,033,108.17/15,298.34
  6. Step 6: Final answer
    x = 13,794.51

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Double scale
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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.