Home / 15,343.68-21,082.52-12,194.40

Finding the Fourth Proportional to 15,343.68, 21,082.52 and 12,194.40

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Solution

The fourth proportional to 15,343.68, 21,082.52 and 12,194.40 is: 16,755.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,343.68 : 21,082.52 = 12,194.40 : x
  2. Step 2: Convert to fraction form
    15,343.68/21,082.52 = 12,194.40/x
  3. Step 3: Cross multiply
    15,343.68x = 21,082.52 × 12,194.40
  4. Step 4: Simplify right side
    15,343.68x = 257,088,620.92
  5. Step 5: Solve for x
    x = 257,088,620.92/15,343.68
  6. Step 6: Final answer
    x = 16,755.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.