Home / 15,298.32-21,111.36-8,584.08

Finding the Fourth Proportional to 15,298.32, 21,111.36 and 8,584.08

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Solution

The fourth proportional to 15,298.32, 21,111.36 and 8,584.08 is: 11,845.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,298.32 : 21,111.36 = 8,584.08 : x
  2. Step 2: Convert to fraction form
    15,298.32/21,111.36 = 8,584.08/x
  3. Step 3: Cross multiply
    15,298.32x = 21,111.36 × 8,584.08
  4. Step 4: Simplify right side
    15,298.32x = 181,221,603.15
  5. Step 5: Solve for x
    x = 181,221,603.15/15,298.32
  6. Step 6: Final answer
    x = 11,845.85

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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.