Home / 13,280.72-19,923-4,045.52

Finding the Fourth Proportional to 13,280.72, 19,923 and 4,045.52

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Solution

The fourth proportional to 13,280.72, 19,923 and 4,045.52 is: 6,068.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280.72 : 19,923 = 4,045.52 : x
  2. Step 2: Convert to fraction form
    13,280.72/19,923 = 4,045.52/x
  3. Step 3: Cross multiply
    13,280.72x = 19,923 × 4,045.52
  4. Step 4: Simplify right side
    13,280.72x = 80,598,894.96
  5. Step 5: Solve for x
    x = 80,598,894.96/13,280.72
  6. Step 6: Final answer
    x = 6,068.86

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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.