Home / 11,031.76-15,223.44-6,312.70

Finding the Fourth Proportional to 11,031.76, 15,223.44 and 6,312.70

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Solution

The fourth proportional to 11,031.76, 15,223.44 and 6,312.70 is: 8,711.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,031.76 : 15,223.44 = 6,312.70 : x
  2. Step 2: Convert to fraction form
    11,031.76/15,223.44 = 6,312.70/x
  3. Step 3: Cross multiply
    11,031.76x = 15,223.44 × 6,312.70
  4. Step 4: Simplify right side
    11,031.76x = 96,101,009.69
  5. Step 5: Solve for x
    x = 96,101,009.69/11,031.76
  6. Step 6: Final answer
    x = 8,711.30

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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.