Home / 18,712.63-28,047.75-6,229.72

Finding the Fourth Proportional to 18,712.63, 28,047.75 and 6,229.72

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Solution

The fourth proportional to 18,712.63, 28,047.75 and 6,229.72 is: 9,337.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,712.63 : 28,047.75 = 6,229.72 : x
  2. Step 2: Convert to fraction form
    18,712.63/28,047.75 = 6,229.72/x
  3. Step 3: Cross multiply
    18,712.63x = 28,047.75 × 6,229.72
  4. Step 4: Simplify right side
    18,712.63x = 174,729,518.10
  5. Step 5: Solve for x
    x = 174,729,518.10/18,712.63
  6. Step 6: Final answer
    x = 9,337.52

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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.