Home / 8,931.60-13,389.84-3,381.89

Finding the Fourth Proportional to 8,931.60, 13,389.84 and 3,381.89

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Solution

The fourth proportional to 8,931.60, 13,389.84 and 3,381.89 is: 5,069.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,931.60 : 13,389.84 = 3,381.89 : x
  2. Step 2: Convert to fraction form
    8,931.60/13,389.84 = 3,381.89/x
  3. Step 3: Cross multiply
    8,931.60x = 13,389.84 × 3,381.89
  4. Step 4: Simplify right side
    8,931.60x = 45,282,899.05
  5. Step 5: Solve for x
    x = 45,282,899.05/8,931.60
  6. Step 6: Final answer
    x = 5,069.96

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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.