Home / 8,667.56-13,002.96-3,123.92

Finding the Fourth Proportional to 8,667.56, 13,002.96 and 3,123.92

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Solution

The fourth proportional to 8,667.56, 13,002.96 and 3,123.92 is: 4,686.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,667.56 : 13,002.96 = 3,123.92 : x
  2. Step 2: Convert to fraction form
    8,667.56/13,002.96 = 3,123.92/x
  3. Step 3: Cross multiply
    8,667.56x = 13,002.96 × 3,123.92
  4. Step 4: Simplify right side
    8,667.56x = 40,620,141.79
  5. Step 5: Solve for x
    x = 40,620,141.79/8,667.56
  6. Step 6: Final answer
    x = 4,686.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.