Home / 7,621.61-10,517.94-4,637.57

Finding the Fourth Proportional to 7,621.61, 10,517.94 and 4,637.57

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Solution

The fourth proportional to 7,621.61, 10,517.94 and 4,637.57 is: 6,399.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.61 : 10,517.94 = 4,637.57 : x
  2. Step 2: Convert to fraction form
    7,621.61/10,517.94 = 4,637.57/x
  3. Step 3: Cross multiply
    7,621.61x = 10,517.94 × 4,637.57
  4. Step 4: Simplify right side
    7,621.61x = 48,777,630.42
  5. Step 5: Solve for x
    x = 48,777,630.42/7,621.61
  6. Step 6: Final answer
    x = 6,399.92

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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.