Home / 10,299.12-15,435.12-4,672.68

Finding the Fourth Proportional to 10,299.12, 15,435.12 and 4,672.68

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Solution

The fourth proportional to 10,299.12, 15,435.12 and 4,672.68 is: 7,002.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,299.12 : 15,435.12 = 4,672.68 : x
  2. Step 2: Convert to fraction form
    10,299.12/15,435.12 = 4,672.68/x
  3. Step 3: Cross multiply
    10,299.12x = 15,435.12 × 4,672.68
  4. Step 4: Simplify right side
    10,299.12x = 72,123,376.52
  5. Step 5: Solve for x
    x = 72,123,376.52/10,299.12
  6. Step 6: Final answer
    x = 7,002.87

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1.5x scale

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.