Home / 15,343.77-21,082.65-12,194.49

Finding the Fourth Proportional to 15,343.77, 21,082.65 and 12,194.49

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Solution

The fourth proportional to 15,343.77, 21,082.65 and 12,194.49 is: 16,755.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,343.77 : 21,082.65 = 12,194.49 : x
  2. Step 2: Convert to fraction form
    15,343.77/21,082.65 = 12,194.49/x
  3. Step 3: Cross multiply
    15,343.77x = 21,082.65 × 12,194.49
  4. Step 4: Simplify right side
    15,343.77x = 257,092,197.93
  5. Step 5: Solve for x
    x = 257,092,197.93/15,343.77
  6. Step 6: Final answer
    x = 16,755.47

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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.