Home / 10,105.57-15,151.30-4,480.19

Finding the Fourth Proportional to 10,105.57, 15,151.30 and 4,480.19

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Solution

The fourth proportional to 10,105.57, 15,151.30 and 4,480.19 is: 6,717.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,105.57 : 15,151.30 = 4,480.19 : x
  2. Step 2: Convert to fraction form
    10,105.57/15,151.30 = 4,480.19/x
  3. Step 3: Cross multiply
    10,105.57x = 15,151.30 × 4,480.19
  4. Step 4: Simplify right side
    10,105.57x = 67,880,702.75
  5. Step 5: Solve for x
    x = 67,880,702.75/10,105.57
  6. Step 6: Final answer
    x = 6,717.16

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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.