Home / 7,711.55-11,555.20-5,960.84

Finding the Fourth Proportional to 7,711.55, 11,555.20 and 5,960.84

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Solution

The fourth proportional to 7,711.55, 11,555.20 and 5,960.84 is: 8,931.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,711.55 : 11,555.20 = 5,960.84 : x
  2. Step 2: Convert to fraction form
    7,711.55/11,555.20 = 5,960.84/x
  3. Step 3: Cross multiply
    7,711.55x = 11,555.20 × 5,960.84
  4. Step 4: Simplify right side
    7,711.55x = 68,878,672.29
  5. Step 5: Solve for x
    x = 68,878,672.29/7,711.55
  6. Step 6: Final answer
    x = 8,931.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.