Home / 12,397.18-18,602.14-8,240.04

Finding the Fourth Proportional to 12,397.18, 18,602.14 and 8,240.04

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Solution

The fourth proportional to 12,397.18, 18,602.14 and 8,240.04 is: 12,364.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,397.18 : 18,602.14 = 8,240.04 : x
  2. Step 2: Convert to fraction form
    12,397.18/18,602.14 = 8,240.04/x
  3. Step 3: Cross multiply
    12,397.18x = 18,602.14 × 8,240.04
  4. Step 4: Simplify right side
    12,397.18x = 153,282,377.69
  5. Step 5: Solve for x
    x = 153,282,377.69/12,397.18
  6. Step 6: Final answer
    x = 12,364.29

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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.