Home / 9,862.04-13,609.64-5,385.80

Finding the Fourth Proportional to 9,862.04, 13,609.64 and 5,385.80

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Solution

The fourth proportional to 9,862.04, 13,609.64 and 5,385.80 is: 7,432.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,862.04 : 13,609.64 = 5,385.80 : x
  2. Step 2: Convert to fraction form
    9,862.04/13,609.64 = 5,385.80/x
  3. Step 3: Cross multiply
    9,862.04x = 13,609.64 × 5,385.80
  4. Step 4: Simplify right side
    9,862.04x = 73,298,799.11
  5. Step 5: Solve for x
    x = 73,298,799.11/9,862.04
  6. Step 6: Final answer
    x = 7,432.42

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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.