Home / 19,280.09-28,916.58-8,747.57

Finding the Fourth Proportional to 19,280.09, 28,916.58 and 8,747.57

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Solution

The fourth proportional to 19,280.09, 28,916.58 and 8,747.57 is: 13,119.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,280.09 : 28,916.58 = 8,747.57 : x
  2. Step 2: Convert to fraction form
    19,280.09/28,916.58 = 8,747.57/x
  3. Step 3: Cross multiply
    19,280.09x = 28,916.58 × 8,747.57
  4. Step 4: Simplify right side
    19,280.09x = 252,949,910.67
  5. Step 5: Solve for x
    x = 252,949,910.67/19,280.09
  6. Step 6: Final answer
    x = 13,119.75

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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.