Home / 10,685.28-16,027.92-7,380.32

Finding the Fourth Proportional to 10,685.28, 16,027.92 and 7,380.32

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Solution

The fourth proportional to 10,685.28, 16,027.92 and 7,380.32 is: 11,070.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,685.28 : 16,027.92 = 7,380.32 : x
  2. Step 2: Convert to fraction form
    10,685.28/16,027.92 = 7,380.32/x
  3. Step 3: Cross multiply
    10,685.28x = 16,027.92 × 7,380.32
  4. Step 4: Simplify right side
    10,685.28x = 118,291,178.53
  5. Step 5: Solve for x
    x = 118,291,178.53/10,685.28
  6. Step 6: Final answer
    x = 11,070.48

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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.