Home / 15,320.50-21,144.11-8,606.14

Finding the Fourth Proportional to 15,320.50, 21,144.11 and 8,606.14

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Solution

The fourth proportional to 15,320.50, 21,144.11 and 8,606.14 is: 11,877.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,320.50 : 21,144.11 = 8,606.14 : x
  2. Step 2: Convert to fraction form
    15,320.50/21,144.11 = 8,606.14/x
  3. Step 3: Cross multiply
    15,320.50x = 21,144.11 × 8,606.14
  4. Step 4: Simplify right side
    15,320.50x = 181,969,170.84
  5. Step 5: Solve for x
    x = 181,969,170.84/15,320.50
  6. Step 6: Final answer
    x = 11,877.50

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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.