Home / 10,306.32-15,464.42-7,148.60

Finding the Fourth Proportional to 10,306.32, 15,464.42 and 7,148.60

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Solution

The fourth proportional to 10,306.32, 15,464.42 and 7,148.60 is: 10,726.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,306.32 : 15,464.42 = 7,148.60 : x
  2. Step 2: Convert to fraction form
    10,306.32/15,464.42 = 7,148.60/x
  3. Step 3: Cross multiply
    10,306.32x = 15,464.42 × 7,148.60
  4. Step 4: Simplify right side
    10,306.32x = 110,548,952.81
  5. Step 5: Solve for x
    x = 110,548,952.81/10,306.32
  6. Step 6: Final answer
    x = 10,726.33

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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.