Home / 7,986.28-11,018.10-5,630.44

Finding the Fourth Proportional to 7,986.28, 11,018.10 and 5,630.44

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Solution

The fourth proportional to 7,986.28, 11,018.10 and 5,630.44 is: 7,767.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.28 : 11,018.10 = 5,630.44 : x
  2. Step 2: Convert to fraction form
    7,986.28/11,018.10 = 5,630.44/x
  3. Step 3: Cross multiply
    7,986.28x = 11,018.10 × 5,630.44
  4. Step 4: Simplify right side
    7,986.28x = 62,036,750.96
  5. Step 5: Solve for x
    x = 62,036,750.96/7,986.28
  6. Step 6: Final answer
    x = 7,767.92

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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.