Home / 8,769.90-12,103.92-5,235.06

Finding the Fourth Proportional to 8,769.90, 12,103.92 and 5,235.06

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Solution

The fourth proportional to 8,769.90, 12,103.92 and 5,235.06 is: 7,225.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,769.90 : 12,103.92 = 5,235.06 : x
  2. Step 2: Convert to fraction form
    8,769.90/12,103.92 = 5,235.06/x
  3. Step 3: Cross multiply
    8,769.90x = 12,103.92 × 5,235.06
  4. Step 4: Simplify right side
    8,769.90x = 63,364,747.44
  5. Step 5: Solve for x
    x = 63,364,747.44/8,769.90
  6. Step 6: Final answer
    x = 7,225.25

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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.