Home / 9,864.60-13,613.28-5,388.30

Finding the Fourth Proportional to 9,864.60, 13,613.28 and 5,388.30

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Solution

The fourth proportional to 9,864.60, 13,613.28 and 5,388.30 is: 7,435.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,864.60 : 13,613.28 = 5,388.30 : x
  2. Step 2: Convert to fraction form
    9,864.60/13,613.28 = 5,388.30/x
  3. Step 3: Cross multiply
    9,864.60x = 13,613.28 × 5,388.30
  4. Step 4: Simplify right side
    9,864.60x = 73,352,436.62
  5. Step 5: Solve for x
    x = 73,352,436.62/9,864.60
  6. Step 6: Final answer
    x = 7,435.93

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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.