Home / 10,144.01-13,991.32-6,780.91

Finding the Fourth Proportional to 10,144.01, 13,991.32 and 6,780.91

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Solution

The fourth proportional to 10,144.01, 13,991.32 and 6,780.91 is: 9,352.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,144.01 : 13,991.32 = 6,780.91 : x
  2. Step 2: Convert to fraction form
    10,144.01/13,991.32 = 6,780.91/x
  3. Step 3: Cross multiply
    10,144.01x = 13,991.32 × 6,780.91
  4. Step 4: Simplify right side
    10,144.01x = 94,873,881.70
  5. Step 5: Solve for x
    x = 94,873,881.70/10,144.01
  6. Step 6: Final answer
    x = 9,352.70

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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.