Home / 12,451.32-18,688.70-8,294.26

Finding the Fourth Proportional to 12,451.32, 18,688.70 and 8,294.26

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Solution

The fourth proportional to 12,451.32, 18,688.70 and 8,294.26 is: 12,449.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,451.32 : 18,688.70 = 8,294.26 : x
  2. Step 2: Convert to fraction form
    12,451.32/18,688.70 = 8,294.26/x
  3. Step 3: Cross multiply
    12,451.32x = 18,688.70 × 8,294.26
  4. Step 4: Simplify right side
    12,451.32x = 155,008,936.86
  5. Step 5: Solve for x
    x = 155,008,936.86/12,451.32
  6. Step 6: Final answer
    x = 12,449.20

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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.