Home / 12,781.04-19,171.66-4,461.02

Finding the Fourth Proportional to 12,781.04, 19,171.66 and 4,461.02

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Solution

The fourth proportional to 12,781.04, 19,171.66 and 4,461.02 is: 6,691.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781.04 : 19,171.66 = 4,461.02 : x
  2. Step 2: Convert to fraction form
    12,781.04/19,171.66 = 4,461.02/x
  3. Step 3: Cross multiply
    12,781.04x = 19,171.66 × 4,461.02
  4. Step 4: Simplify right side
    12,781.04x = 85,525,158.69
  5. Step 5: Solve for x
    x = 85,525,158.69/12,781.04
  6. Step 6: Final answer
    x = 6,691.56

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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.