Home / 10,517.74-15,779.16-3,943.99

Finding the Fourth Proportional to 10,517.74, 15,779.16 and 3,943.99

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Solution

The fourth proportional to 10,517.74, 15,779.16 and 3,943.99 is: 5,916.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,517.74 : 15,779.16 = 3,943.99 : x
  2. Step 2: Convert to fraction form
    10,517.74/15,779.16 = 3,943.99/x
  3. Step 3: Cross multiply
    10,517.74x = 15,779.16 × 3,943.99
  4. Step 4: Simplify right side
    10,517.74x = 62,232,750.63
  5. Step 5: Solve for x
    x = 62,232,750.63/10,517.74
  6. Step 6: Final answer
    x = 5,916.93

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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.