Home / 15,302.92-21,119.12-8,497.32

Finding the Fourth Proportional to 15,302.92, 21,119.12 and 8,497.32

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Solution

The fourth proportional to 15,302.92, 21,119.12 and 8,497.32 is: 11,726.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,302.92 : 21,119.12 = 8,497.32 : x
  2. Step 2: Convert to fraction form
    15,302.92/21,119.12 = 8,497.32/x
  3. Step 3: Cross multiply
    15,302.92x = 21,119.12 × 8,497.32
  4. Step 4: Simplify right side
    15,302.92x = 179,455,920.76
  5. Step 5: Solve for x
    x = 179,455,920.76/15,302.92
  6. Step 6: Final answer
    x = 11,726.91

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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.