Home / 8,372.74-12,561.45-2,529.40

Finding the Fourth Proportional to 8,372.74, 12,561.45 and 2,529.40

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Solution

The fourth proportional to 8,372.74, 12,561.45 and 2,529.40 is: 3,794.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,372.74 : 12,561.45 = 2,529.40 : x
  2. Step 2: Convert to fraction form
    8,372.74/12,561.45 = 2,529.40/x
  3. Step 3: Cross multiply
    8,372.74x = 12,561.45 × 2,529.40
  4. Step 4: Simplify right side
    8,372.74x = 31,772,931.63
  5. Step 5: Solve for x
    x = 31,772,931.63/8,372.74
  6. Step 6: Final answer
    x = 3,794.81

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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.