Home / 10,288.60-15,440.10-4,449.40

Finding the Fourth Proportional to 10,288.60, 15,440.10 and 4,449.40

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Solution

The fourth proportional to 10,288.60, 15,440.10 and 4,449.40 is: 6,677.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,288.60 : 15,440.10 = 4,449.40 : x
  2. Step 2: Convert to fraction form
    10,288.60/15,440.10 = 4,449.40/x
  3. Step 3: Cross multiply
    10,288.60x = 15,440.10 × 4,449.40
  4. Step 4: Simplify right side
    10,288.60x = 68,699,180.94
  5. Step 5: Solve for x
    x = 68,699,180.94/10,288.60
  6. Step 6: Final answer
    x = 6,677.21

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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.