Home / 8,772.16-12,107.86-4,997.48

Finding the Fourth Proportional to 8,772.16, 12,107.86 and 4,997.48

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Solution

The fourth proportional to 8,772.16, 12,107.86 and 4,997.48 is: 6,897.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,772.16 : 12,107.86 = 4,997.48 : x
  2. Step 2: Convert to fraction form
    8,772.16/12,107.86 = 4,997.48/x
  3. Step 3: Cross multiply
    8,772.16x = 12,107.86 × 4,997.48
  4. Step 4: Simplify right side
    8,772.16x = 60,508,788.19
  5. Step 5: Solve for x
    x = 60,508,788.19/8,772.16
  6. Step 6: Final answer
    x = 6,897.82

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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.