Home / 8,470.10-11,689.17-5,112.87

Finding the Fourth Proportional to 8,470.10, 11,689.17 and 5,112.87

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Solution

The fourth proportional to 8,470.10, 11,689.17 and 5,112.87 is: 7,056.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,470.10 : 11,689.17 = 5,112.87 : x
  2. Step 2: Convert to fraction form
    8,470.10/11,689.17 = 5,112.87/x
  3. Step 3: Cross multiply
    8,470.10x = 11,689.17 × 5,112.87
  4. Step 4: Simplify right side
    8,470.10x = 59,765,206.62
  5. Step 5: Solve for x
    x = 59,765,206.62/8,470.10
  6. Step 6: Final answer
    x = 7,056.02

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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.