Home / 8,667.87-11,963.09-5,312.54

Finding the Fourth Proportional to 8,667.87, 11,963.09 and 5,312.54

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Solution

The fourth proportional to 8,667.87, 11,963.09 and 5,312.54 is: 7,332.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,667.87 : 11,963.09 = 5,312.54 : x
  2. Step 2: Convert to fraction form
    8,667.87/11,963.09 = 5,312.54/x
  3. Step 3: Cross multiply
    8,667.87x = 11,963.09 × 5,312.54
  4. Step 4: Simplify right side
    8,667.87x = 63,554,394.15
  5. Step 5: Solve for x
    x = 63,554,394.15/8,667.87
  6. Step 6: Final answer
    x = 7,332.18

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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.