Home / 14,445.60-21,644.10-12,355.80

Finding the Fourth Proportional to 14,445.60, 21,644.10 and 12,355.80

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Solution

The fourth proportional to 14,445.60, 21,644.10 and 12,355.80 is: 18,512.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,445.60 : 21,644.10 = 12,355.80 : x
  2. Step 2: Convert to fraction form
    14,445.60/21,644.10 = 12,355.80/x
  3. Step 3: Cross multiply
    14,445.60x = 21,644.10 × 12,355.80
  4. Step 4: Simplify right side
    14,445.60x = 267,430,170.78
  5. Step 5: Solve for x
    x = 267,430,170.78/14,445.60
  6. Step 6: Final answer
    x = 18,512.92

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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.