Home / 9,511.27-13,129.85-6,330.20

Finding the Fourth Proportional to 9,511.27, 13,129.85 and 6,330.20

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Solution

The fourth proportional to 9,511.27, 13,129.85 and 6,330.20 is: 8,738.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,511.27 : 13,129.85 = 6,330.20 : x
  2. Step 2: Convert to fraction form
    9,511.27/13,129.85 = 6,330.20/x
  3. Step 3: Cross multiply
    9,511.27x = 13,129.85 × 6,330.20
  4. Step 4: Simplify right side
    9,511.27x = 83,114,564.89
  5. Step 5: Solve for x
    x = 83,114,564.89/9,511.27
  6. Step 6: Final answer
    x = 8,738.53

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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.