Home / 6,820.80-10,174.40-6,707.92

Finding the Fourth Proportional to 6,820.80, 10,174.40 and 6,707.92

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Solution

The fourth proportional to 6,820.80, 10,174.40 and 6,707.92 is: 10,006.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,820.80 : 10,174.40 = 6,707.92 : x
  2. Step 2: Convert to fraction form
    6,820.80/10,174.40 = 6,707.92/x
  3. Step 3: Cross multiply
    6,820.80x = 10,174.40 × 6,707.92
  4. Step 4: Simplify right side
    6,820.80x = 68,249,061.25
  5. Step 5: Solve for x
    x = 68,249,061.25/6,820.80
  6. Step 6: Final answer
    x = 10,006.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.