Home / 10,170.36-15,181.88-8,792.55

Finding the Fourth Proportional to 10,170.36, 15,181.88 and 8,792.55

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Solution

The fourth proportional to 10,170.36, 15,181.88 and 8,792.55 is: 13,125.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,170.36 : 15,181.88 = 8,792.55 : x
  2. Step 2: Convert to fraction form
    10,170.36/15,181.88 = 8,792.55/x
  3. Step 3: Cross multiply
    10,170.36x = 15,181.88 × 8,792.55
  4. Step 4: Simplify right side
    10,170.36x = 133,487,395.03
  5. Step 5: Solve for x
    x = 133,487,395.03/10,170.36
  6. Step 6: Final answer
    x = 13,125.14

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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.