Home / 7,985.28-11,026.35-5,872.62

Finding the Fourth Proportional to 7,985.28, 11,026.35 and 5,872.62

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Solution

The fourth proportional to 7,985.28, 11,026.35 and 5,872.62 is: 8,109.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,985.28 : 11,026.35 = 5,872.62 : x
  2. Step 2: Convert to fraction form
    7,985.28/11,026.35 = 5,872.62/x
  3. Step 3: Cross multiply
    7,985.28x = 11,026.35 × 5,872.62
  4. Step 4: Simplify right side
    7,985.28x = 64,753,563.54
  5. Step 5: Solve for x
    x = 64,753,563.54/7,985.28
  6. Step 6: Final answer
    x = 8,109.12

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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.