Home / 10,113.75-15,170.62-10,099.15

Finding the Fourth Proportional to 10,113.75, 15,170.62 and 10,099.15

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Solution

The fourth proportional to 10,113.75, 15,170.62 and 10,099.15 is: 15,148.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,113.75 : 15,170.62 = 10,099.15 : x
  2. Step 2: Convert to fraction form
    10,113.75/15,170.62 = 10,099.15/x
  3. Step 3: Cross multiply
    10,113.75x = 15,170.62 × 10,099.15
  4. Step 4: Simplify right side
    10,113.75x = 153,210,366.97
  5. Step 5: Solve for x
    x = 153,210,366.97/10,113.75
  6. Step 6: Final answer
    x = 15,148.72

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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.