Home / 15,082.17-20,812.46-9,110.31

Finding the Fourth Proportional to 15,082.17, 20,812.46 and 9,110.31

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Solution

The fourth proportional to 15,082.17, 20,812.46 and 9,110.31 is: 12,571.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,082.17 : 20,812.46 = 9,110.31 : x
  2. Step 2: Convert to fraction form
    15,082.17/20,812.46 = 9,110.31/x
  3. Step 3: Cross multiply
    15,082.17x = 20,812.46 × 9,110.31
  4. Step 4: Simplify right side
    15,082.17x = 189,607,916.91
  5. Step 5: Solve for x
    x = 189,607,916.91/15,082.17
  6. Step 6: Final answer
    x = 12,571.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.