Home / 8,815.30-12,167.26-5,987.40

Finding the Fourth Proportional to 8,815.30, 12,167.26 and 5,987.40

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Solution

The fourth proportional to 8,815.30, 12,167.26 and 5,987.40 is: 8,264.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,815.30 : 12,167.26 = 5,987.40 : x
  2. Step 2: Convert to fraction form
    8,815.30/12,167.26 = 5,987.40/x
  3. Step 3: Cross multiply
    8,815.30x = 12,167.26 × 5,987.40
  4. Step 4: Simplify right side
    8,815.30x = 72,850,252.52
  5. Step 5: Solve for x
    x = 72,850,252.52/8,815.30
  6. Step 6: Final answer
    x = 8,264.07

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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.