Home / 7,155.57-10,721.60-6,882.19

Finding the Fourth Proportional to 7,155.57, 10,721.60 and 6,882.19

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Solution

The fourth proportional to 7,155.57, 10,721.60 and 6,882.19 is: 10,311.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,155.57 : 10,721.60 = 6,882.19 : x
  2. Step 2: Convert to fraction form
    7,155.57/10,721.60 = 6,882.19/x
  3. Step 3: Cross multiply
    7,155.57x = 10,721.60 × 6,882.19
  4. Step 4: Simplify right side
    7,155.57x = 73,788,088.30
  5. Step 5: Solve for x
    x = 73,788,088.30/7,155.57
  6. Step 6: Final answer
    x = 10,311.98

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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.