Home / 7,743.72-10,685.72-4,557.15

Finding the Fourth Proportional to 7,743.72, 10,685.72 and 4,557.15

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Solution

The fourth proportional to 7,743.72, 10,685.72 and 4,557.15 is: 6,288.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,743.72 : 10,685.72 = 4,557.15 : x
  2. Step 2: Convert to fraction form
    7,743.72/10,685.72 = 4,557.15/x
  3. Step 3: Cross multiply
    7,743.72x = 10,685.72 × 4,557.15
  4. Step 4: Simplify right side
    7,743.72x = 48,696,428.90
  5. Step 5: Solve for x
    x = 48,696,428.90/7,743.72
  6. Step 6: Final answer
    x = 6,288.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.