Home / 13,699.90-20,552.93-4,340.48

Finding the Fourth Proportional to 13,699.90, 20,552.93 and 4,340.48

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Solution

The fourth proportional to 13,699.90, 20,552.93 and 4,340.48 is: 6,511.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,699.90 : 20,552.93 = 4,340.48 : x
  2. Step 2: Convert to fraction form
    13,699.90/20,552.93 = 4,340.48/x
  3. Step 3: Cross multiply
    13,699.90x = 20,552.93 × 4,340.48
  4. Step 4: Simplify right side
    13,699.90x = 89,209,581.61
  5. Step 5: Solve for x
    x = 89,209,581.61/13,699.90
  6. Step 6: Final answer
    x = 6,511.70

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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.