Home / 18,719.28-28,071.77-6,236.91

Finding the Fourth Proportional to 18,719.28, 28,071.77 and 6,236.91

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Solution

The fourth proportional to 18,719.28, 28,071.77 and 6,236.91 is: 9,352.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,719.28 : 28,071.77 = 6,236.91 : x
  2. Step 2: Convert to fraction form
    18,719.28/28,071.77 = 6,236.91/x
  3. Step 3: Cross multiply
    18,719.28x = 28,071.77 × 6,236.91
  4. Step 4: Simplify right side
    18,719.28x = 175,081,071.85
  5. Step 5: Solve for x
    x = 175,081,071.85/18,719.28
  6. Step 6: Final answer
    x = 9,352.98

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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.