Home / 8,386.50-12,580.65-3,192.39

Finding the Fourth Proportional to 8,386.50, 12,580.65 and 3,192.39

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Solution

The fourth proportional to 8,386.50, 12,580.65 and 3,192.39 is: 4,788.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,386.50 : 12,580.65 = 3,192.39 : x
  2. Step 2: Convert to fraction form
    8,386.50/12,580.65 = 3,192.39/x
  3. Step 3: Cross multiply
    8,386.50x = 12,580.65 × 3,192.39
  4. Step 4: Simplify right side
    8,386.50x = 40,162,341.25
  5. Step 5: Solve for x
    x = 40,162,341.25/8,386.50
  6. Step 6: Final answer
    x = 4,788.93

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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.