Home / 11,031.27-15,223.19-6,315.59

Finding the Fourth Proportional to 11,031.27, 15,223.19 and 6,315.59

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Solution

The fourth proportional to 11,031.27, 15,223.19 and 6,315.59 is: 8,715.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,031.27 : 15,223.19 = 6,315.59 : x
  2. Step 2: Convert to fraction form
    11,031.27/15,223.19 = 6,315.59/x
  3. Step 3: Cross multiply
    11,031.27x = 15,223.19 × 6,315.59
  4. Step 4: Simplify right side
    11,031.27x = 96,143,318.84
  5. Step 5: Solve for x
    x = 96,143,318.84/11,031.27
  6. Step 6: Final answer
    x = 8,715.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.