Home / 8,531.28-12,798.56-3,336.84

Finding the Fourth Proportional to 8,531.28, 12,798.56 and 3,336.84

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Solution

The fourth proportional to 8,531.28, 12,798.56 and 3,336.84 is: 5,005.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,531.28 : 12,798.56 = 3,336.84 : x
  2. Step 2: Convert to fraction form
    8,531.28/12,798.56 = 3,336.84/x
  3. Step 3: Cross multiply
    8,531.28x = 12,798.56 × 3,336.84
  4. Step 4: Simplify right side
    8,531.28x = 42,706,746.95
  5. Step 5: Solve for x
    x = 42,706,746.95/8,531.28
  6. Step 6: Final answer
    x = 5,005.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.