Home / 10,235.04-15,355.68-5,308.20

Finding the Fourth Proportional to 10,235.04, 15,355.68 and 5,308.20

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Solution

The fourth proportional to 10,235.04, 15,355.68 and 5,308.20 is: 7,963.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,235.04 : 15,355.68 = 5,308.20 : x
  2. Step 2: Convert to fraction form
    10,235.04/15,355.68 = 5,308.20/x
  3. Step 3: Cross multiply
    10,235.04x = 15,355.68 × 5,308.20
  4. Step 4: Simplify right side
    10,235.04x = 81,511,020.58
  5. Step 5: Solve for x
    x = 81,511,020.58/10,235.04
  6. Step 6: Final answer
    x = 7,963.92

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1.5x scale

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.