Home / 8,937.15-12,332.36-5,161.51

Finding the Fourth Proportional to 8,937.15, 12,332.36 and 5,161.51

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Solution

The fourth proportional to 8,937.15, 12,332.36 and 5,161.51 is: 7,122.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,937.15 : 12,332.36 = 5,161.51 : x
  2. Step 2: Convert to fraction form
    8,937.15/12,332.36 = 5,161.51/x
  3. Step 3: Cross multiply
    8,937.15x = 12,332.36 × 5,161.51
  4. Step 4: Simplify right side
    8,937.15x = 63,653,627.78
  5. Step 5: Solve for x
    x = 63,653,627.78/8,937.15
  6. Step 6: Final answer
    x = 7,122.37

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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.