Home / 10,203.85-15,306.51-4,274.78

Finding the Fourth Proportional to 10,203.85, 15,306.51 and 4,274.78

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Solution

The fourth proportional to 10,203.85, 15,306.51 and 4,274.78 is: 6,412.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,203.85 : 15,306.51 = 4,274.78 : x
  2. Step 2: Convert to fraction form
    10,203.85/15,306.51 = 4,274.78/x
  3. Step 3: Cross multiply
    10,203.85x = 15,306.51 × 4,274.78
  4. Step 4: Simplify right side
    10,203.85x = 65,431,962.82
  5. Step 5: Solve for x
    x = 65,431,962.82/10,203.85
  6. Step 6: Final answer
    x = 6,412.48

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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.