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Finding the Fourth Proportional to 8,407.36, 12,603.72 and 6,061.60

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Solution

The fourth proportional to 8,407.36, 12,603.72 and 6,061.60 is: 9,087.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,407.36 : 12,603.72 = 6,061.60 : x
  2. Step 2: Convert to fraction form
    8,407.36/12,603.72 = 6,061.60/x
  3. Step 3: Cross multiply
    8,407.36x = 12,603.72 × 6,061.60
  4. Step 4: Simplify right side
    8,407.36x = 76,398,709.15
  5. Step 5: Solve for x
    x = 76,398,709.15/8,407.36
  6. Step 6: Final answer
    x = 9,087.12

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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.