Home / 17,478.28-26,200.38-11,220.76

Finding the Fourth Proportional to 17,478.28, 26,200.38 and 11,220.76

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Solution

The fourth proportional to 17,478.28, 26,200.38 and 11,220.76 is: 16,820.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,478.28 : 26,200.38 = 11,220.76 : x
  2. Step 2: Convert to fraction form
    17,478.28/26,200.38 = 11,220.76/x
  3. Step 3: Cross multiply
    17,478.28x = 26,200.38 × 11,220.76
  4. Step 4: Simplify right side
    17,478.28x = 293,988,175.89
  5. Step 5: Solve for x
    x = 293,988,175.89/17,478.28
  6. Step 6: Final answer
    x = 16,820.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.