Home / 10,155.44-15,164.52-8,310.16

Finding the Fourth Proportional to 10,155.44, 15,164.52 and 8,310.16

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Solution

The fourth proportional to 10,155.44, 15,164.52 and 8,310.16 is: 12,409.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,155.44 : 15,164.52 = 8,310.16 : x
  2. Step 2: Convert to fraction form
    10,155.44/15,164.52 = 8,310.16/x
  3. Step 3: Cross multiply
    10,155.44x = 15,164.52 × 8,310.16
  4. Step 4: Simplify right side
    10,155.44x = 126,019,587.52
  5. Step 5: Solve for x
    x = 126,019,587.52/10,155.44
  6. Step 6: Final answer
    x = 12,409.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.