Home / 8,667.36-11,966.40-5,687.52

Finding the Fourth Proportional to 8,667.36, 11,966.40 and 5,687.52

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Solution

The fourth proportional to 8,667.36, 11,966.40 and 5,687.52 is: 7,852.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,667.36 : 11,966.40 = 5,687.52 : x
  2. Step 2: Convert to fraction form
    8,667.36/11,966.40 = 5,687.52/x
  3. Step 3: Cross multiply
    8,667.36x = 11,966.40 × 5,687.52
  4. Step 4: Simplify right side
    8,667.36x = 68,059,139.33
  5. Step 5: Solve for x
    x = 68,059,139.33/8,667.36
  6. Step 6: Final answer
    x = 7,852.35

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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.