Home / 8,780.86-12,116.95-4,801.13

Finding the Fourth Proportional to 8,780.86, 12,116.95 and 4,801.13

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Solution

The fourth proportional to 8,780.86, 12,116.95 and 4,801.13 is: 6,625.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,780.86 : 12,116.95 = 4,801.13 : x
  2. Step 2: Convert to fraction form
    8,780.86/12,116.95 = 4,801.13/x
  3. Step 3: Cross multiply
    8,780.86x = 12,116.95 × 4,801.13
  4. Step 4: Simplify right side
    8,780.86x = 58,175,052.15
  5. Step 5: Solve for x
    x = 58,175,052.15/8,780.86
  6. Step 6: Final answer
    x = 6,625.21

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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.