Home / 15,312.92-21,133.05-8,599

Finding the Fourth Proportional to 15,312.92, 21,133.05 and 8,599

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Solution

The fourth proportional to 15,312.92, 21,133.05 and 8,599 is: 11,867.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,312.92 : 21,133.05 = 8,599 : x
  2. Step 2: Convert to fraction form
    15,312.92/21,133.05 = 8,599/x
  3. Step 3: Cross multiply
    15,312.92x = 21,133.05 × 8,599
  4. Step 4: Simplify right side
    15,312.92x = 181,723,096.95
  5. Step 5: Solve for x
    x = 181,723,096.95/15,312.92
  6. Step 6: Final answer
    x = 11,867.31

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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.