Home / 12,613.40-18,908.10-4,713.80

Finding the Fourth Proportional to 12,613.40, 18,908.10 and 4,713.80

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Solution

The fourth proportional to 12,613.40, 18,908.10 and 4,713.80 is: 7,066.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,613.40 : 18,908.10 = 4,713.80 : x
  2. Step 2: Convert to fraction form
    12,613.40/18,908.10 = 4,713.80/x
  3. Step 3: Cross multiply
    12,613.40x = 18,908.10 × 4,713.80
  4. Step 4: Simplify right side
    12,613.40x = 89,129,001.78
  5. Step 5: Solve for x
    x = 89,129,001.78/12,613.40
  6. Step 6: Final answer
    x = 7,066.22

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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.