Home / 8,178.24-11,272.80-5,521.02

Finding the Fourth Proportional to 8,178.24, 11,272.80 and 5,521.02

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Solution

The fourth proportional to 8,178.24, 11,272.80 and 5,521.02 is: 7,610.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,178.24 : 11,272.80 = 5,521.02 : x
  2. Step 2: Convert to fraction form
    8,178.24/11,272.80 = 5,521.02/x
  3. Step 3: Cross multiply
    8,178.24x = 11,272.80 × 5,521.02
  4. Step 4: Simplify right side
    8,178.24x = 62,237,354.26
  5. Step 5: Solve for x
    x = 62,237,354.26/8,178.24
  6. Step 6: Final answer
    x = 7,610.12

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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.