Home / 8,966.85-12,374.04-4,987.95

Finding the Fourth Proportional to 8,966.85, 12,374.04 and 4,987.95

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Solution

The fourth proportional to 8,966.85, 12,374.04 and 4,987.95 is: 6,883.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,966.85 : 12,374.04 = 4,987.95 : x
  2. Step 2: Convert to fraction form
    8,966.85/12,374.04 = 4,987.95/x
  3. Step 3: Cross multiply
    8,966.85x = 12,374.04 × 4,987.95
  4. Step 4: Simplify right side
    8,966.85x = 61,721,092.82
  5. Step 5: Solve for x
    x = 61,721,092.82/8,966.85
  6. Step 6: Final answer
    x = 6,883.25

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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.