Home / 13,254.79-19,923.51-8,355.91

Finding the Fourth Proportional to 13,254.79, 19,923.51 and 8,355.91

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Solution

The fourth proportional to 13,254.79, 19,923.51 and 8,355.91 is: 12,559.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,254.79 : 19,923.51 = 8,355.91 : x
  2. Step 2: Convert to fraction form
    13,254.79/19,923.51 = 8,355.91/x
  3. Step 3: Cross multiply
    13,254.79x = 19,923.51 × 8,355.91
  4. Step 4: Simplify right side
    13,254.79x = 166,479,056.44
  5. Step 5: Solve for x
    x = 166,479,056.44/13,254.79
  6. Step 6: Final answer
    x = 12,559.92

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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.