Home / 8,769.19-12,102.31-4,790.90

Finding the Fourth Proportional to 8,769.19, 12,102.31 and 4,790.90

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Solution

The fourth proportional to 8,769.19, 12,102.31 and 4,790.90 is: 6,611.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,769.19 : 12,102.31 = 4,790.90 : x
  2. Step 2: Convert to fraction form
    8,769.19/12,102.31 = 4,790.90/x
  3. Step 3: Cross multiply
    8,769.19x = 12,102.31 × 4,790.90
  4. Step 4: Simplify right side
    8,769.19x = 57,980,925.15
  5. Step 5: Solve for x
    x = 57,980,925.15/8,769.19
  6. Step 6: Final answer
    x = 6,611.89

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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.