Home / 15,788.73-21,787.61-9,073.29

Finding the Fourth Proportional to 15,788.73, 21,787.61 and 9,073.29

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Solution

The fourth proportional to 15,788.73, 21,787.61 and 9,073.29 is: 12,520.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,788.73 : 21,787.61 = 9,073.29 : x
  2. Step 2: Convert to fraction form
    15,788.73/21,787.61 = 9,073.29/x
  3. Step 3: Cross multiply
    15,788.73x = 21,787.61 × 9,073.29
  4. Step 4: Simplify right side
    15,788.73x = 197,685,258.57
  5. Step 5: Solve for x
    x = 197,685,258.57/15,788.73
  6. Step 6: Final answer
    x = 12,520.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.