Home / 8,934.53-12,330.21-5,158.39

Finding the Fourth Proportional to 8,934.53, 12,330.21 and 5,158.39

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Solution

The fourth proportional to 8,934.53, 12,330.21 and 5,158.39 is: 7,118.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,934.53 : 12,330.21 = 5,158.39 : x
  2. Step 2: Convert to fraction form
    8,934.53/12,330.21 = 5,158.39/x
  3. Step 3: Cross multiply
    8,934.53x = 12,330.21 × 5,158.39
  4. Step 4: Simplify right side
    8,934.53x = 63,604,035.89
  5. Step 5: Solve for x
    x = 63,604,035.89/8,934.53
  6. Step 6: Final answer
    x = 7,118.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.