Home / 8,269.42-11,415.63-5,440.90

Finding the Fourth Proportional to 8,269.42, 11,415.63 and 5,440.90

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Solution

The fourth proportional to 8,269.42, 11,415.63 and 5,440.90 is: 7,510.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,269.42 : 11,415.63 = 5,440.90 : x
  2. Step 2: Convert to fraction form
    8,269.42/11,415.63 = 5,440.90/x
  3. Step 3: Cross multiply
    8,269.42x = 11,415.63 × 5,440.90
  4. Step 4: Simplify right side
    8,269.42x = 62,111,301.27
  5. Step 5: Solve for x
    x = 62,111,301.27/8,269.42
  6. Step 6: Final answer
    x = 7,510.96

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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.