Home / 10,529.12-15,788.16-3,132.56

Finding the Fourth Proportional to 10,529.12, 15,788.16 and 3,132.56

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Solution

The fourth proportional to 10,529.12, 15,788.16 and 3,132.56 is: 4,697.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,529.12 : 15,788.16 = 3,132.56 : x
  2. Step 2: Convert to fraction form
    10,529.12/15,788.16 = 3,132.56/x
  3. Step 3: Cross multiply
    10,529.12x = 15,788.16 × 3,132.56
  4. Step 4: Simplify right side
    10,529.12x = 49,457,358.49
  5. Step 5: Solve for x
    x = 49,457,358.49/10,529.12
  6. Step 6: Final answer
    x = 4,697.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.