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Finding the Fourth Proportional to 15,082.50, 20,806.37 and 12,253.07

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Solution

The fourth proportional to 15,082.50, 20,806.37 and 12,253.07 is: 16,903.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,082.50 : 20,806.37 = 12,253.07 : x
  2. Step 2: Convert to fraction form
    15,082.50/20,806.37 = 12,253.07/x
  3. Step 3: Cross multiply
    15,082.50x = 20,806.37 × 12,253.07
  4. Step 4: Simplify right side
    15,082.50x = 254,941,944.76
  5. Step 5: Solve for x
    x = 254,941,944.76/15,082.50
  6. Step 6: Final answer
    x = 16,903.16

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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.