Home / 14,780.60-20,397.20-9,475.40

Finding the Fourth Proportional to 14,780.60, 20,397.20 and 9,475.40

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Solution

The fourth proportional to 14,780.60, 20,397.20 and 9,475.40 is: 13,076.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,780.60 : 20,397.20 = 9,475.40 : x
  2. Step 2: Convert to fraction form
    14,780.60/20,397.20 = 9,475.40/x
  3. Step 3: Cross multiply
    14,780.60x = 20,397.20 × 9,475.40
  4. Step 4: Simplify right side
    14,780.60x = 193,271,703.56
  5. Step 5: Solve for x
    x = 193,271,703.56/14,780.60
  6. Step 6: Final answer
    x = 13,076.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.