Home / 7,621.27-10,519-4,638.06

Finding the Fourth Proportional to 7,621.27, 10,519 and 4,638.06

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Solution

The fourth proportional to 7,621.27, 10,519 and 4,638.06 is: 6,401.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.27 : 10,519 = 4,638.06 : x
  2. Step 2: Convert to fraction form
    7,621.27/10,519 = 4,638.06/x
  3. Step 3: Cross multiply
    7,621.27x = 10,519 × 4,638.06
  4. Step 4: Simplify right side
    7,621.27x = 48,787,753.14
  5. Step 5: Solve for x
    x = 48,787,753.14/7,621.27
  6. Step 6: Final answer
    x = 6,401.53

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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.