Home / 8,789.96-12,130.11-4,811.10

Finding the Fourth Proportional to 8,789.96, 12,130.11 and 4,811.10

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Solution

The fourth proportional to 8,789.96, 12,130.11 and 4,811.10 is: 6,639.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,789.96 : 12,130.11 = 4,811.10 : x
  2. Step 2: Convert to fraction form
    8,789.96/12,130.11 = 4,811.10/x
  3. Step 3: Cross multiply
    8,789.96x = 12,130.11 × 4,811.10
  4. Step 4: Simplify right side
    8,789.96x = 58,359,172.22
  5. Step 5: Solve for x
    x = 58,359,172.22/8,789.96
  6. Step 6: Final answer
    x = 6,639.30

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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.