Home / 8,116.88-12,159.54-5,335.11

Finding the Fourth Proportional to 8,116.88, 12,159.54 and 5,335.11

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Solution

The fourth proportional to 8,116.88, 12,159.54 and 5,335.11 is: 7,992.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,116.88 : 12,159.54 = 5,335.11 : x
  2. Step 2: Convert to fraction form
    8,116.88/12,159.54 = 5,335.11/x
  3. Step 3: Cross multiply
    8,116.88x = 12,159.54 × 5,335.11
  4. Step 4: Simplify right side
    8,116.88x = 64,872,483.45
  5. Step 5: Solve for x
    x = 64,872,483.45/8,116.88
  6. Step 6: Final answer
    x = 7,992.30

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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.