Home / 18,821.05-25,970.18-10,753.29

Finding the Fourth Proportional to 18,821.05, 25,970.18 and 10,753.29

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Solution

The fourth proportional to 18,821.05, 25,970.18 and 10,753.29 is: 14,837.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,821.05 : 25,970.18 = 10,753.29 : x
  2. Step 2: Convert to fraction form
    18,821.05/25,970.18 = 10,753.29/x
  3. Step 3: Cross multiply
    18,821.05x = 25,970.18 × 10,753.29
  4. Step 4: Simplify right side
    18,821.05x = 279,264,876.89
  5. Step 5: Solve for x
    x = 279,264,876.89/18,821.05
  6. Step 6: Final answer
    x = 14,837.90

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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.