Home / 15,821.60-21,833.71-8,748.07

Finding the Fourth Proportional to 15,821.60, 21,833.71 and 8,748.07

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Solution

The fourth proportional to 15,821.60, 21,833.71 and 8,748.07 is: 12,072.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,821.60 : 21,833.71 = 8,748.07 : x
  2. Step 2: Convert to fraction form
    15,821.60/21,833.71 = 8,748.07/x
  3. Step 3: Cross multiply
    15,821.60x = 21,833.71 × 8,748.07
  4. Step 4: Simplify right side
    15,821.60x = 191,002,746.99
  5. Step 5: Solve for x
    x = 191,002,746.99/15,821.60
  6. Step 6: Final answer
    x = 12,072.28

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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.