Home / 10,405.02-15,605.25-3,385.62

Finding the Fourth Proportional to 10,405.02, 15,605.25 and 3,385.62

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Solution

The fourth proportional to 10,405.02, 15,605.25 and 3,385.62 is: 5,077.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,405.02 : 15,605.25 = 3,385.62 : x
  2. Step 2: Convert to fraction form
    10,405.02/15,605.25 = 3,385.62/x
  3. Step 3: Cross multiply
    10,405.02x = 15,605.25 × 3,385.62
  4. Step 4: Simplify right side
    10,405.02x = 52,833,446.51
  5. Step 5: Solve for x
    x = 52,833,446.51/10,405.02
  6. Step 6: Final answer
    x = 5,077.69

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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.