Home / 8,269.81-11,407.79-5,239.38

Finding the Fourth Proportional to 8,269.81, 11,407.79 and 5,239.38

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Solution

The fourth proportional to 8,269.81, 11,407.79 and 5,239.38 is: 7,227.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,269.81 : 11,407.79 = 5,239.38 : x
  2. Step 2: Convert to fraction form
    8,269.81/11,407.79 = 5,239.38/x
  3. Step 3: Cross multiply
    8,269.81x = 11,407.79 × 5,239.38
  4. Step 4: Simplify right side
    8,269.81x = 59,769,746.77
  5. Step 5: Solve for x
    x = 59,769,746.77/8,269.81
  6. Step 6: Final answer
    x = 7,227.46

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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.