Home / 14,790.10-20,432.60-9,697.72

Finding the Fourth Proportional to 14,790.10, 20,432.60 and 9,697.72

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Solution

The fourth proportional to 14,790.10, 20,432.60 and 9,697.72 is: 13,397.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,790.10 : 20,432.60 = 9,697.72 : x
  2. Step 2: Convert to fraction form
    14,790.10/20,432.60 = 9,697.72/x
  3. Step 3: Cross multiply
    14,790.10x = 20,432.60 × 9,697.72
  4. Step 4: Simplify right side
    14,790.10x = 198,149,633.67
  5. Step 5: Solve for x
    x = 198,149,633.67/14,790.10
  6. Step 6: Final answer
    x = 13,397.45

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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.