Home / 9,149.51-12,621.69-6,124.75

Finding the Fourth Proportional to 9,149.51, 12,621.69 and 6,124.75

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Solution

The fourth proportional to 9,149.51, 12,621.69 and 6,124.75 is: 8,449.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,149.51 : 12,621.69 = 6,124.75 : x
  2. Step 2: Convert to fraction form
    9,149.51/12,621.69 = 6,124.75/x
  3. Step 3: Cross multiply
    9,149.51x = 12,621.69 × 6,124.75
  4. Step 4: Simplify right side
    9,149.51x = 77,304,695.83
  5. Step 5: Solve for x
    x = 77,304,695.83/9,149.51
  6. Step 6: Final answer
    x = 8,449.05

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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.