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Finding the Fourth Proportional to 9,711.70, 13,403.55 and 6,180.10

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Solution

The fourth proportional to 9,711.70, 13,403.55 and 6,180.10 is: 8,529.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,711.70 : 13,403.55 = 6,180.10 : x
  2. Step 2: Convert to fraction form
    9,711.70/13,403.55 = 6,180.10/x
  3. Step 3: Cross multiply
    9,711.70x = 13,403.55 × 6,180.10
  4. Step 4: Simplify right side
    9,711.70x = 82,835,279.36
  5. Step 5: Solve for x
    x = 82,835,279.36/9,711.70
  6. Step 6: Final answer
    x = 8,529.43

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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.