Home / 12,486.04-18,716.02-5,461.72

Finding the Fourth Proportional to 12,486.04, 18,716.02 and 5,461.72

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Solution

The fourth proportional to 12,486.04, 18,716.02 and 5,461.72 is: 8,186.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,486.04 : 18,716.02 = 5,461.72 : x
  2. Step 2: Convert to fraction form
    12,486.04/18,716.02 = 5,461.72/x
  3. Step 3: Cross multiply
    12,486.04x = 18,716.02 × 5,461.72
  4. Step 4: Simplify right side
    12,486.04x = 102,221,660.75
  5. Step 5: Solve for x
    x = 102,221,660.75/12,486.04
  6. Step 6: Final answer
    x = 8,186.88

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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.