Home / 18,753.30-25,885.32-10,800.81

Finding the Fourth Proportional to 18,753.30, 25,885.32 and 10,800.81

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Solution

The fourth proportional to 18,753.30, 25,885.32 and 10,800.81 is: 14,908.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,753.30 : 25,885.32 = 10,800.81 : x
  2. Step 2: Convert to fraction form
    18,753.30/25,885.32 = 10,800.81/x
  3. Step 3: Cross multiply
    18,753.30x = 25,885.32 × 10,800.81
  4. Step 4: Simplify right side
    18,753.30x = 279,582,423.11
  5. Step 5: Solve for x
    x = 279,582,423.11/18,753.30
  6. Step 6: Final answer
    x = 14,908.44

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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.