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Finding the Fourth Proportional to 8,897, 12,277.88 and 5,360.36

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Solution

The fourth proportional to 8,897, 12,277.88 and 5,360.36 is: 7,397.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,897 : 12,277.88 = 5,360.36 : x
  2. Step 2: Convert to fraction form
    8,897/12,277.88 = 5,360.36/x
  3. Step 3: Cross multiply
    8,897x = 12,277.88 × 5,360.36
  4. Step 4: Simplify right side
    8,897x = 65,813,856.84
  5. Step 5: Solve for x
    x = 65,813,856.84/8,897
  6. Step 6: Final answer
    x = 7,397.31

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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.