Home / 12,354.60-18,531.90-5,427.24

Finding the Fourth Proportional to 12,354.60, 18,531.90 and 5,427.24

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Solution

The fourth proportional to 12,354.60, 18,531.90 and 5,427.24 is: 8,140.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,354.60 : 18,531.90 = 5,427.24 : x
  2. Step 2: Convert to fraction form
    12,354.60/18,531.90 = 5,427.24/x
  3. Step 3: Cross multiply
    12,354.60x = 18,531.90 × 5,427.24
  4. Step 4: Simplify right side
    12,354.60x = 100,577,068.96
  5. Step 5: Solve for x
    x = 100,577,068.96/12,354.60
  6. Step 6: Final answer
    x = 8,140.86

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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.