Home / 12,522.22-18,780.29-4,200.08

Finding the Fourth Proportional to 12,522.22, 18,780.29 and 4,200.08

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Solution

The fourth proportional to 12,522.22, 18,780.29 and 4,200.08 is: 6,299.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,522.22 : 18,780.29 = 4,200.08 : x
  2. Step 2: Convert to fraction form
    12,522.22/18,780.29 = 4,200.08/x
  3. Step 3: Cross multiply
    12,522.22x = 18,780.29 × 4,200.08
  4. Step 4: Simplify right side
    12,522.22x = 78,878,726.91
  5. Step 5: Solve for x
    x = 78,878,726.91/12,522.22
  6. Step 6: Final answer
    x = 6,299.10

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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.