Home / 8,769.10-12,101.62-4,790.40

Finding the Fourth Proportional to 8,769.10, 12,101.62 and 4,790.40

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Solution

The fourth proportional to 8,769.10, 12,101.62 and 4,790.40 is: 6,610.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,769.10 : 12,101.62 = 4,790.40 : x
  2. Step 2: Convert to fraction form
    8,769.10/12,101.62 = 4,790.40/x
  3. Step 3: Cross multiply
    8,769.10x = 12,101.62 × 4,790.40
  4. Step 4: Simplify right side
    8,769.10x = 57,971,600.45
  5. Step 5: Solve for x
    x = 57,971,600.45/8,769.10
  6. Step 6: Final answer
    x = 6,610.90

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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.