Home / 15,384.28-21,229.50-8,669.92

Finding the Fourth Proportional to 15,384.28, 21,229.50 and 8,669.92

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Solution

The fourth proportional to 15,384.28, 21,229.50 and 8,669.92 is: 11,964.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,384.28 : 21,229.50 = 8,669.92 : x
  2. Step 2: Convert to fraction form
    15,384.28/21,229.50 = 8,669.92/x
  3. Step 3: Cross multiply
    15,384.28x = 21,229.50 × 8,669.92
  4. Step 4: Simplify right side
    15,384.28x = 184,058,066.64
  5. Step 5: Solve for x
    x = 184,058,066.64/15,384.28
  6. Step 6: Final answer
    x = 11,964.04

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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.