Home / 12,528.56-17,286.55-7,491.98

Finding the Fourth Proportional to 12,528.56, 17,286.55 and 7,491.98

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Solution

The fourth proportional to 12,528.56, 17,286.55 and 7,491.98 is: 10,337.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528.56 : 17,286.55 = 7,491.98 : x
  2. Step 2: Convert to fraction form
    12,528.56/17,286.55 = 7,491.98/x
  3. Step 3: Cross multiply
    12,528.56x = 17,286.55 × 7,491.98
  4. Step 4: Simplify right side
    12,528.56x = 129,510,381.71
  5. Step 5: Solve for x
    x = 129,510,381.71/12,528.56
  6. Step 6: Final answer
    x = 10,337.22

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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.