Home / 15,343.06-21,177.84-9,057.46

Finding the Fourth Proportional to 15,343.06, 21,177.84 and 9,057.46

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Solution

The fourth proportional to 15,343.06, 21,177.84 and 9,057.46 is: 12,501.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,343.06 : 21,177.84 = 9,057.46 : x
  2. Step 2: Convert to fraction form
    15,343.06/21,177.84 = 9,057.46/x
  3. Step 3: Cross multiply
    15,343.06x = 21,177.84 × 9,057.46
  4. Step 4: Simplify right side
    15,343.06x = 191,817,438.69
  5. Step 5: Solve for x
    x = 191,817,438.69/15,343.06
  6. Step 6: Final answer
    x = 12,501.90

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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.