Home / 7,160.18-10,728.52-6,886.80

Finding the Fourth Proportional to 7,160.18, 10,728.52 and 6,886.80

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Solution

The fourth proportional to 7,160.18, 10,728.52 and 6,886.80 is: 10,318.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,160.18 : 10,728.52 = 6,886.80 : x
  2. Step 2: Convert to fraction form
    7,160.18/10,728.52 = 6,886.80/x
  3. Step 3: Cross multiply
    7,160.18x = 10,728.52 × 6,886.80
  4. Step 4: Simplify right side
    7,160.18x = 73,885,154.32
  5. Step 5: Solve for x
    x = 73,885,154.32/7,160.18
  6. Step 6: Final answer
    x = 10,318.90

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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.