Home / 13,283.74-18,340.38-8,255.46

Finding the Fourth Proportional to 13,283.74, 18,340.38 and 8,255.46

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Solution

The fourth proportional to 13,283.74, 18,340.38 and 8,255.46 is: 11,398.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,283.74 : 18,340.38 = 8,255.46 : x
  2. Step 2: Convert to fraction form
    13,283.74/18,340.38 = 8,255.46/x
  3. Step 3: Cross multiply
    13,283.74x = 18,340.38 × 8,255.46
  4. Step 4: Simplify right side
    13,283.74x = 151,408,263.16
  5. Step 5: Solve for x
    x = 151,408,263.16/13,283.74
  6. Step 6: Final answer
    x = 11,398.02

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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.