Home / 8,660.45-11,951.40-4,681.56

Finding the Fourth Proportional to 8,660.45, 11,951.40 and 4,681.56

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Solution

The fourth proportional to 8,660.45, 11,951.40 and 4,681.56 is: 6,460.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,660.45 : 11,951.40 = 4,681.56 : x
  2. Step 2: Convert to fraction form
    8,660.45/11,951.40 = 4,681.56/x
  3. Step 3: Cross multiply
    8,660.45x = 11,951.40 × 4,681.56
  4. Step 4: Simplify right side
    8,660.45x = 55,951,196.18
  5. Step 5: Solve for x
    x = 55,951,196.18/8,660.45
  6. Step 6: Final answer
    x = 6,460.55

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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.