Home / 19,916.69-29,874.83-5,125.55

Finding the Fourth Proportional to 19,916.69, 29,874.83 and 5,125.55

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Solution

The fourth proportional to 19,916.69, 29,874.83 and 5,125.55 is: 7,688.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,916.69 : 29,874.83 = 5,125.55 : x
  2. Step 2: Convert to fraction form
    19,916.69/29,874.83 = 5,125.55/x
  3. Step 3: Cross multiply
    19,916.69x = 29,874.83 × 5,125.55
  4. Step 4: Simplify right side
    19,916.69x = 153,124,759.90
  5. Step 5: Solve for x
    x = 153,124,759.90/19,916.69
  6. Step 6: Final answer
    x = 7,688.27

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1.5x scale

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.