Home / 18,712.36-28,062.40-6,228.96

Finding the Fourth Proportional to 18,712.36, 28,062.40 and 6,228.96

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Solution

The fourth proportional to 18,712.36, 28,062.40 and 6,228.96 is: 9,341.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,712.36 : 28,062.40 = 6,228.96 : x
  2. Step 2: Convert to fraction form
    18,712.36/28,062.40 = 6,228.96/x
  3. Step 3: Cross multiply
    18,712.36x = 28,062.40 × 6,228.96
  4. Step 4: Simplify right side
    18,712.36x = 174,799,567.10
  5. Step 5: Solve for x
    x = 174,799,567.10/18,712.36
  6. Step 6: Final answer
    x = 9,341.40

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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.