Home / 10,387.58-15,581.41-2,596.40

Finding the Fourth Proportional to 10,387.58, 15,581.41 and 2,596.40

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Solution

The fourth proportional to 10,387.58, 15,581.41 and 2,596.40 is: 3,894.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,387.58 : 15,581.41 = 2,596.40 : x
  2. Step 2: Convert to fraction form
    10,387.58/15,581.41 = 2,596.40/x
  3. Step 3: Cross multiply
    10,387.58x = 15,581.41 × 2,596.40
  4. Step 4: Simplify right side
    10,387.58x = 40,455,572.92
  5. Step 5: Solve for x
    x = 40,455,572.92/10,387.58
  6. Step 6: Final answer
    x = 3,894.61

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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.