Home / 10,006.72-15,008.40-3,433.12

Finding the Fourth Proportional to 10,006.72, 15,008.40 and 3,433.12

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Solution

The fourth proportional to 10,006.72, 15,008.40 and 3,433.12 is: 5,149.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,006.72 : 15,008.40 = 3,433.12 : x
  2. Step 2: Convert to fraction form
    10,006.72/15,008.40 = 3,433.12/x
  3. Step 3: Cross multiply
    10,006.72x = 15,008.40 × 3,433.12
  4. Step 4: Simplify right side
    10,006.72x = 51,525,638.21
  5. Step 5: Solve for x
    x = 51,525,638.21/10,006.72
  6. Step 6: Final answer
    x = 5,149.10

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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.