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Finding the Fourth Proportional to 8,862.40, 13,274.40 and 7,326.40

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Solution

The fourth proportional to 8,862.40, 13,274.40 and 7,326.40 is: 10,973.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,862.40 : 13,274.40 = 7,326.40 : x
  2. Step 2: Convert to fraction form
    8,862.40/13,274.40 = 7,326.40/x
  3. Step 3: Cross multiply
    8,862.40x = 13,274.40 × 7,326.40
  4. Step 4: Simplify right side
    8,862.40x = 97,253,564.16
  5. Step 5: Solve for x
    x = 97,253,564.16/8,862.40
  6. Step 6: Final answer
    x = 10,973.73

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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.