Home / 11,275.12-15,559.20-6,239.02

Finding the Fourth Proportional to 11,275.12, 15,559.20 and 6,239.02

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Solution

The fourth proportional to 11,275.12, 15,559.20 and 6,239.02 is: 8,609.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,275.12 : 15,559.20 = 6,239.02 : x
  2. Step 2: Convert to fraction form
    11,275.12/15,559.20 = 6,239.02/x
  3. Step 3: Cross multiply
    11,275.12x = 15,559.20 × 6,239.02
  4. Step 4: Simplify right side
    11,275.12x = 97,074,159.98
  5. Step 5: Solve for x
    x = 97,074,159.98/11,275.12
  6. Step 6: Final answer
    x = 8,609.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.