Home / 11,031.26-15,223.14-6,315.57

Finding the Fourth Proportional to 11,031.26, 15,223.14 and 6,315.57

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Solution

The fourth proportional to 11,031.26, 15,223.14 and 6,315.57 is: 8,715.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,031.26 : 15,223.14 = 6,315.57 : x
  2. Step 2: Convert to fraction form
    11,031.26/15,223.14 = 6,315.57/x
  3. Step 3: Cross multiply
    11,031.26x = 15,223.14 × 6,315.57
  4. Step 4: Simplify right side
    11,031.26x = 96,142,806.29
  5. Step 5: Solve for x
    x = 96,142,806.29/11,031.26
  6. Step 6: Final answer
    x = 8,715.49

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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.