Home / 6,219.08-9,328.64-5,121.15

Finding the Fourth Proportional to 6,219.08, 9,328.64 and 5,121.15

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Solution

The fourth proportional to 6,219.08, 9,328.64 and 5,121.15 is: 7,681.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,219.08 : 9,328.64 = 5,121.15 : x
  2. Step 2: Convert to fraction form
    6,219.08/9,328.64 = 5,121.15/x
  3. Step 3: Cross multiply
    6,219.08x = 9,328.64 × 5,121.15
  4. Step 4: Simplify right side
    6,219.08x = 47,773,304.15
  5. Step 5: Solve for x
    x = 47,773,304.15/6,219.08
  6. Step 6: Final answer
    x = 7,681.73

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1.5x scale

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.