Home / 11,275.50-15,559.81-6,239.93

Finding the Fourth Proportional to 11,275.50, 15,559.81 and 6,239.93

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Solution

The fourth proportional to 11,275.50, 15,559.81 and 6,239.93 is: 8,610.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,275.50 : 15,559.81 = 6,239.93 : x
  2. Step 2: Convert to fraction form
    11,275.50/15,559.81 = 6,239.93/x
  3. Step 3: Cross multiply
    11,275.50x = 15,559.81 × 6,239.93
  4. Step 4: Simplify right side
    11,275.50x = 97,092,202.53
  5. Step 5: Solve for x
    x = 97,092,202.53/11,275.50
  6. Step 6: Final answer
    x = 8,610.90

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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.