Home / 8,667.14-11,961.45-5,130.87

Finding the Fourth Proportional to 8,667.14, 11,961.45 and 5,130.87

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Solution

The fourth proportional to 8,667.14, 11,961.45 and 5,130.87 is: 7,081.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,667.14 : 11,961.45 = 5,130.87 : x
  2. Step 2: Convert to fraction form
    8,667.14/11,961.45 = 5,130.87/x
  3. Step 3: Cross multiply
    8,667.14x = 11,961.45 × 5,130.87
  4. Step 4: Simplify right side
    8,667.14x = 61,372,644.96
  5. Step 5: Solve for x
    x = 61,372,644.96/8,667.14
  6. Step 6: Final answer
    x = 7,081.08

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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.