Home / 15,822.47-21,834.38-8,748.89

Finding the Fourth Proportional to 15,822.47, 21,834.38 and 8,748.89

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Solution

The fourth proportional to 15,822.47, 21,834.38 and 8,748.89 is: 12,073.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,822.47 : 21,834.38 = 8,748.89 : x
  2. Step 2: Convert to fraction form
    15,822.47/21,834.38 = 8,748.89/x
  3. Step 3: Cross multiply
    15,822.47x = 21,834.38 × 8,748.89
  4. Step 4: Simplify right side
    15,822.47x = 191,026,435.92
  5. Step 5: Solve for x
    x = 191,026,435.92/15,822.47
  6. Step 6: Final answer
    x = 12,073.11

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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.