Home / 10,306.47-15,458.45-4,385.74

Finding the Fourth Proportional to 10,306.47, 15,458.45 and 4,385.74

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Solution

The fourth proportional to 10,306.47, 15,458.45 and 4,385.74 is: 6,578.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,306.47 : 15,458.45 = 4,385.74 : x
  2. Step 2: Convert to fraction form
    10,306.47/15,458.45 = 4,385.74/x
  3. Step 3: Cross multiply
    10,306.47x = 15,458.45 × 4,385.74
  4. Step 4: Simplify right side
    10,306.47x = 67,796,735.58
  5. Step 5: Solve for x
    x = 67,796,735.58/10,306.47
  6. Step 6: Final answer
    x = 6,578.07

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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.