Home / 10,262.40-15,399.52-4,338.80

Finding the Fourth Proportional to 10,262.40, 15,399.52 and 4,338.80

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Solution

The fourth proportional to 10,262.40, 15,399.52 and 4,338.80 is: 6,510.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,262.40 : 15,399.52 = 4,338.80 : x
  2. Step 2: Convert to fraction form
    10,262.40/15,399.52 = 4,338.80/x
  3. Step 3: Cross multiply
    10,262.40x = 15,399.52 × 4,338.80
  4. Step 4: Simplify right side
    10,262.40x = 66,815,437.38
  5. Step 5: Solve for x
    x = 66,815,437.38/10,262.40
  6. Step 6: Final answer
    x = 6,510.70

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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.