Home / 9,719.27-14,560.11-8,140.53

Finding the Fourth Proportional to 9,719.27, 14,560.11 and 8,140.53

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Solution

The fourth proportional to 9,719.27, 14,560.11 and 8,140.53 is: 12,195.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,719.27 : 14,560.11 = 8,140.53 : x
  2. Step 2: Convert to fraction form
    9,719.27/14,560.11 = 8,140.53/x
  3. Step 3: Cross multiply
    9,719.27x = 14,560.11 × 8,140.53
  4. Step 4: Simplify right side
    9,719.27x = 118,527,042.79
  5. Step 5: Solve for x
    x = 118,527,042.79/9,719.27
  6. Step 6: Final answer
    x = 12,195.05

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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.