Home / 8,869.76-13,281.18-5,355.08

Finding the Fourth Proportional to 8,869.76, 13,281.18 and 5,355.08

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Solution

The fourth proportional to 8,869.76, 13,281.18 and 5,355.08 is: 8,018.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,869.76 : 13,281.18 = 5,355.08 : x
  2. Step 2: Convert to fraction form
    8,869.76/13,281.18 = 5,355.08/x
  3. Step 3: Cross multiply
    8,869.76x = 13,281.18 × 5,355.08
  4. Step 4: Simplify right side
    8,869.76x = 71,121,781.39
  5. Step 5: Solve for x
    x = 71,121,781.39/8,869.76
  6. Step 6: Final answer
    x = 8,018.46

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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.