Home / 8,572.29-11,829.39-5,388.86

Finding the Fourth Proportional to 8,572.29, 11,829.39 and 5,388.86

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Solution

The fourth proportional to 8,572.29, 11,829.39 and 5,388.86 is: 7,436.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,572.29 : 11,829.39 = 5,388.86 : x
  2. Step 2: Convert to fraction form
    8,572.29/11,829.39 = 5,388.86/x
  3. Step 3: Cross multiply
    8,572.29x = 11,829.39 × 5,388.86
  4. Step 4: Simplify right side
    8,572.29x = 63,746,926.60
  5. Step 5: Solve for x
    x = 63,746,926.60/8,572.29
  6. Step 6: Final answer
    x = 7,436.39

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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.