Home / 9,916.38-14,876.01-2,990.70

Finding the Fourth Proportional to 9,916.38, 14,876.01 and 2,990.70

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Solution

The fourth proportional to 9,916.38, 14,876.01 and 2,990.70 is: 4,486.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,916.38 : 14,876.01 = 2,990.70 : x
  2. Step 2: Convert to fraction form
    9,916.38/14,876.01 = 2,990.70/x
  3. Step 3: Cross multiply
    9,916.38x = 14,876.01 × 2,990.70
  4. Step 4: Simplify right side
    9,916.38x = 44,489,683.11
  5. Step 5: Solve for x
    x = 44,489,683.11/9,916.38
  6. Step 6: Final answer
    x = 4,486.48

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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.