Home / 10,065.60-15,089.76-3,488.40

Finding the Fourth Proportional to 10,065.60, 15,089.76 and 3,488.40

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Solution

The fourth proportional to 10,065.60, 15,089.76 and 3,488.40 is: 5,229.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,065.60 : 15,089.76 = 3,488.40 : x
  2. Step 2: Convert to fraction form
    10,065.60/15,089.76 = 3,488.40/x
  3. Step 3: Cross multiply
    10,065.60x = 15,089.76 × 3,488.40
  4. Step 4: Simplify right side
    10,065.60x = 52,639,118.78
  5. Step 5: Solve for x
    x = 52,639,118.78/10,065.60
  6. Step 6: Final answer
    x = 5,229.61

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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.