Home / 8,557.52-12,828.70-3,362.20

Finding the Fourth Proportional to 8,557.52, 12,828.70 and 3,362.20

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Solution

The fourth proportional to 8,557.52, 12,828.70 and 3,362.20 is: 5,040.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,557.52 : 12,828.70 = 3,362.20 : x
  2. Step 2: Convert to fraction form
    8,557.52/12,828.70 = 3,362.20/x
  3. Step 3: Cross multiply
    8,557.52x = 12,828.70 × 3,362.20
  4. Step 4: Simplify right side
    8,557.52x = 43,132,655.14
  5. Step 5: Solve for x
    x = 43,132,655.14/8,557.52
  6. Step 6: Final answer
    x = 5,040.32

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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.