Home / 11,275.30-15,560.69-6,239.73

Finding the Fourth Proportional to 11,275.30, 15,560.69 and 6,239.73

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Solution

The fourth proportional to 11,275.30, 15,560.69 and 6,239.73 is: 8,611.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,275.30 : 15,560.69 = 6,239.73 : x
  2. Step 2: Convert to fraction form
    11,275.30/15,560.69 = 6,239.73/x
  3. Step 3: Cross multiply
    11,275.30x = 15,560.69 × 6,239.73
  4. Step 4: Simplify right side
    11,275.30x = 97,094,395.21
  5. Step 5: Solve for x
    x = 97,094,395.21/11,275.30
  6. Step 6: Final answer
    x = 8,611.25

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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.