Home / 8,708.20-13,071.51-5,423.60

Finding the Fourth Proportional to 8,708.20, 13,071.51 and 5,423.60

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Solution

The fourth proportional to 8,708.20, 13,071.51 and 5,423.60 is: 8,141.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,708.20 : 13,071.51 = 5,423.60 : x
  2. Step 2: Convert to fraction form
    8,708.20/13,071.51 = 5,423.60/x
  3. Step 3: Cross multiply
    8,708.20x = 13,071.51 × 5,423.60
  4. Step 4: Simplify right side
    8,708.20x = 70,894,641.64
  5. Step 5: Solve for x
    x = 70,894,641.64/8,708.20
  6. Step 6: Final answer
    x = 8,141.14

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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.