Home / 18,876.60-28,315.50-4,836.72

Finding the Fourth Proportional to 18,876.60, 28,315.50 and 4,836.72

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Solution

The fourth proportional to 18,876.60, 28,315.50 and 4,836.72 is: 7,255.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,876.60 : 28,315.50 = 4,836.72 : x
  2. Step 2: Convert to fraction form
    18,876.60/28,315.50 = 4,836.72/x
  3. Step 3: Cross multiply
    18,876.60x = 28,315.50 × 4,836.72
  4. Step 4: Simplify right side
    18,876.60x = 136,954,145.16
  5. Step 5: Solve for x
    x = 136,954,145.16/18,876.60
  6. Step 6: Final answer
    x = 7,255.23

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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.