Home / 10,275.72-15,396.66-4,347.78

Finding the Fourth Proportional to 10,275.72, 15,396.66 and 4,347.78

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Solution

The fourth proportional to 10,275.72, 15,396.66 and 4,347.78 is: 6,514.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,275.72 : 15,396.66 = 4,347.78 : x
  2. Step 2: Convert to fraction form
    10,275.72/15,396.66 = 4,347.78/x
  3. Step 3: Cross multiply
    10,275.72x = 15,396.66 × 4,347.78
  4. Step 4: Simplify right side
    10,275.72x = 66,941,290.41
  5. Step 5: Solve for x
    x = 66,941,290.41/10,275.72
  6. Step 6: Final answer
    x = 6,514.51

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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.