Home / 8,889.28-12,267.39-5,351.74

Finding the Fourth Proportional to 8,889.28, 12,267.39 and 5,351.74

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Solution

The fourth proportional to 8,889.28, 12,267.39 and 5,351.74 is: 7,385.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889.28 : 12,267.39 = 5,351.74 : x
  2. Step 2: Convert to fraction form
    8,889.28/12,267.39 = 5,351.74/x
  3. Step 3: Cross multiply
    8,889.28x = 12,267.39 × 5,351.74
  4. Step 4: Simplify right side
    8,889.28x = 65,651,881.76
  5. Step 5: Solve for x
    x = 65,651,881.76/8,889.28
  6. Step 6: Final answer
    x = 7,385.51

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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.