Home / 8,769.60-12,102.48-5,235.84

Finding the Fourth Proportional to 8,769.60, 12,102.48 and 5,235.84

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Solution

The fourth proportional to 8,769.60, 12,102.48 and 5,235.84 is: 7,225.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,769.60 : 12,102.48 = 5,235.84 : x
  2. Step 2: Convert to fraction form
    8,769.60/12,102.48 = 5,235.84/x
  3. Step 3: Cross multiply
    8,769.60x = 12,102.48 × 5,235.84
  4. Step 4: Simplify right side
    8,769.60x = 63,366,648.88
  5. Step 5: Solve for x
    x = 63,366,648.88/8,769.60
  6. Step 6: Final answer
    x = 7,225.72

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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.