Home / 10,366.86-15,539.25-7,071.78

Finding the Fourth Proportional to 10,366.86, 15,539.25 and 7,071.78

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Solution

The fourth proportional to 10,366.86, 15,539.25 and 7,071.78 is: 10,600.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,366.86 : 15,539.25 = 7,071.78 : x
  2. Step 2: Convert to fraction form
    10,366.86/15,539.25 = 7,071.78/x
  3. Step 3: Cross multiply
    10,366.86x = 15,539.25 × 7,071.78
  4. Step 4: Simplify right side
    10,366.86x = 109,890,157.37
  5. Step 5: Solve for x
    x = 109,890,157.37/10,366.86
  6. Step 6: Final answer
    x = 10,600.14

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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.