Home / 10,278.30-15,404.67-5,345.04

Finding the Fourth Proportional to 10,278.30, 15,404.67 and 5,345.04

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Solution

The fourth proportional to 10,278.30, 15,404.67 and 5,345.04 is: 8,010.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,278.30 : 15,404.67 = 5,345.04 : x
  2. Step 2: Convert to fraction form
    10,278.30/15,404.67 = 5,345.04/x
  3. Step 3: Cross multiply
    10,278.30x = 15,404.67 × 5,345.04
  4. Step 4: Simplify right side
    10,278.30x = 82,338,577.34
  5. Step 5: Solve for x
    x = 82,338,577.34/10,278.30
  6. Step 6: Final answer
    x = 8,010.91

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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.