Home / 9,875.12-13,624.20-5,894.78

Finding the Fourth Proportional to 9,875.12, 13,624.20 and 5,894.78

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Solution

The fourth proportional to 9,875.12, 13,624.20 and 5,894.78 is: 8,132.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,875.12 : 13,624.20 = 5,894.78 : x
  2. Step 2: Convert to fraction form
    9,875.12/13,624.20 = 5,894.78/x
  3. Step 3: Cross multiply
    9,875.12x = 13,624.20 × 5,894.78
  4. Step 4: Simplify right side
    9,875.12x = 80,311,593.56
  5. Step 5: Solve for x
    x = 80,311,593.56/9,875.12
  6. Step 6: Final answer
    x = 8,132.72

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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.