Home / 9,143.94-13,685.19-5,242.50

Finding the Fourth Proportional to 9,143.94, 13,685.19 and 5,242.50

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Solution

The fourth proportional to 9,143.94, 13,685.19 and 5,242.50 is: 7,846.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,143.94 : 13,685.19 = 5,242.50 : x
  2. Step 2: Convert to fraction form
    9,143.94/13,685.19 = 5,242.50/x
  3. Step 3: Cross multiply
    9,143.94x = 13,685.19 × 5,242.50
  4. Step 4: Simplify right side
    9,143.94x = 71,744,608.58
  5. Step 5: Solve for x
    x = 71,744,608.58/9,143.94
  6. Step 6: Final answer
    x = 7,846.14

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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.