Home / 12,311.04-16,987.38-6,932.71

Finding the Fourth Proportional to 12,311.04, 16,987.38 and 6,932.71

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Solution

The fourth proportional to 12,311.04, 16,987.38 and 6,932.71 is: 9,566.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,311.04 : 16,987.38 = 6,932.71 : x
  2. Step 2: Convert to fraction form
    12,311.04/16,987.38 = 6,932.71/x
  3. Step 3: Cross multiply
    12,311.04x = 16,987.38 × 6,932.71
  4. Step 4: Simplify right side
    12,311.04x = 117,768,579.20
  5. Step 5: Solve for x
    x = 117,768,579.20/12,311.04
  6. Step 6: Final answer
    x = 9,566.10

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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.