Home / 14,780.10-22,170.35-4,919.38

Finding the Fourth Proportional to 14,780.10, 22,170.35 and 4,919.38

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Solution

The fourth proportional to 14,780.10, 22,170.35 and 4,919.38 is: 7,379.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,780.10 : 22,170.35 = 4,919.38 : x
  2. Step 2: Convert to fraction form
    14,780.10/22,170.35 = 4,919.38/x
  3. Step 3: Cross multiply
    14,780.10x = 22,170.35 × 4,919.38
  4. Step 4: Simplify right side
    14,780.10x = 109,064,376.38
  5. Step 5: Solve for x
    x = 109,064,376.38/14,780.10
  6. Step 6: Final answer
    x = 7,379.14

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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.