Home / 10,581.12-15,860.34-5,031

Finding the Fourth Proportional to 10,581.12, 15,860.34 and 5,031

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Solution

The fourth proportional to 10,581.12, 15,860.34 and 5,031 is: 7,541.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,581.12 : 15,860.34 = 5,031 : x
  2. Step 2: Convert to fraction form
    10,581.12/15,860.34 = 5,031/x
  3. Step 3: Cross multiply
    10,581.12x = 15,860.34 × 5,031
  4. Step 4: Simplify right side
    10,581.12x = 79,793,370.54
  5. Step 5: Solve for x
    x = 79,793,370.54/10,581.12
  6. Step 6: Final answer
    x = 7,541.11

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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.