Home / 10,387.39-15,581.07-2,596.21

Finding the Fourth Proportional to 10,387.39, 15,581.07 and 2,596.21

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Solution

The fourth proportional to 10,387.39, 15,581.07 and 2,596.21 is: 3,894.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,387.39 : 15,581.07 = 2,596.21 : x
  2. Step 2: Convert to fraction form
    10,387.39/15,581.07 = 2,596.21/x
  3. Step 3: Cross multiply
    10,387.39x = 15,581.07 × 2,596.21
  4. Step 4: Simplify right side
    10,387.39x = 40,451,729.74
  5. Step 5: Solve for x
    x = 40,451,729.74/10,387.39
  6. Step 6: Final answer
    x = 3,894.31

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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.