Home / 9,387.08-12,953.97-5,138.03

Finding the Fourth Proportional to 9,387.08, 12,953.97 and 5,138.03

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Solution

The fourth proportional to 9,387.08, 12,953.97 and 5,138.03 is: 7,090.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,387.08 : 12,953.97 = 5,138.03 : x
  2. Step 2: Convert to fraction form
    9,387.08/12,953.97 = 5,138.03/x
  3. Step 3: Cross multiply
    9,387.08x = 12,953.97 × 5,138.03
  4. Step 4: Simplify right side
    9,387.08x = 66,557,918.86
  5. Step 5: Solve for x
    x = 66,557,918.86/9,387.08
  6. Step 6: Final answer
    x = 7,090.38

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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.