Home / 9,157.98-12,637.94-5,179.08

Finding the Fourth Proportional to 9,157.98, 12,637.94 and 5,179.08

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Solution

The fourth proportional to 9,157.98, 12,637.94 and 5,179.08 is: 7,147.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,157.98 : 12,637.94 = 5,179.08 : x
  2. Step 2: Convert to fraction form
    9,157.98/12,637.94 = 5,179.08/x
  3. Step 3: Cross multiply
    9,157.98x = 12,637.94 × 5,179.08
  4. Step 4: Simplify right side
    9,157.98x = 65,452,876.40
  5. Step 5: Solve for x
    x = 65,452,876.40/9,157.98
  6. Step 6: Final answer
    x = 7,147.09

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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.