Home / 12,377.16-18,572.12-8,220.04

Finding the Fourth Proportional to 12,377.16, 18,572.12 and 8,220.04

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Solution

The fourth proportional to 12,377.16, 18,572.12 and 8,220.04 is: 12,334.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,377.16 : 18,572.12 = 8,220.04 : x
  2. Step 2: Convert to fraction form
    12,377.16/18,572.12 = 8,220.04/x
  3. Step 3: Cross multiply
    12,377.16x = 18,572.12 × 8,220.04
  4. Step 4: Simplify right side
    12,377.16x = 152,663,569.28
  5. Step 5: Solve for x
    x = 152,663,569.28/12,377.16
  6. Step 6: Final answer
    x = 12,334.30

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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.