Home / 8,667.11-11,963.67-5,130.31

Finding the Fourth Proportional to 8,667.11, 11,963.67 and 5,130.31

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Solution

The fourth proportional to 8,667.11, 11,963.67 and 5,130.31 is: 7,081.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,667.11 : 11,963.67 = 5,130.31 : x
  2. Step 2: Convert to fraction form
    8,667.11/11,963.67 = 5,130.31/x
  3. Step 3: Cross multiply
    8,667.11x = 11,963.67 × 5,130.31
  4. Step 4: Simplify right side
    8,667.11x = 61,377,335.84
  5. Step 5: Solve for x
    x = 61,377,335.84/8,667.11
  6. Step 6: Final answer
    x = 7,081.64

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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.