Home / 14,781.56-20,390.94-10,001.70

Finding the Fourth Proportional to 14,781.56, 20,390.94 and 10,001.70

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Solution

The fourth proportional to 14,781.56, 20,390.94 and 10,001.70 is: 13,797.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,781.56 : 20,390.94 = 10,001.70 : x
  2. Step 2: Convert to fraction form
    14,781.56/20,390.94 = 10,001.70/x
  3. Step 3: Cross multiply
    14,781.56x = 20,390.94 × 10,001.70
  4. Step 4: Simplify right side
    14,781.56x = 203,944,064.60
  5. Step 5: Solve for x
    x = 203,944,064.60/14,781.56
  6. Step 6: Final answer
    x = 13,797.20

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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.