Home / 8,620.60-11,898.68-5,086.16

Finding the Fourth Proportional to 8,620.60, 11,898.68 and 5,086.16

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Solution

The fourth proportional to 8,620.60, 11,898.68 and 5,086.16 is: 7,020.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,620.60 : 11,898.68 = 5,086.16 : x
  2. Step 2: Convert to fraction form
    8,620.60/11,898.68 = 5,086.16/x
  3. Step 3: Cross multiply
    8,620.60x = 11,898.68 × 5,086.16
  4. Step 4: Simplify right side
    8,620.60x = 60,518,590.27
  5. Step 5: Solve for x
    x = 60,518,590.27/8,620.60
  6. Step 6: Final answer
    x = 7,020.23

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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.