Home / 10,252.11-15,372.69-5,309.49

Finding the Fourth Proportional to 10,252.11, 15,372.69 and 5,309.49

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Solution

The fourth proportional to 10,252.11, 15,372.69 and 5,309.49 is: 7,961.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,252.11 : 15,372.69 = 5,309.49 : x
  2. Step 2: Convert to fraction form
    10,252.11/15,372.69 = 5,309.49/x
  3. Step 3: Cross multiply
    10,252.11x = 15,372.69 × 5,309.49
  4. Step 4: Simplify right side
    10,252.11x = 81,621,139.89
  5. Step 5: Solve for x
    x = 81,621,139.89/10,252.11
  6. Step 6: Final answer
    x = 7,961.40

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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.