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Finding the Fourth Proportional to 18,719, 25,832.22 and 10,335.56

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Solution

The fourth proportional to 18,719, 25,832.22 and 10,335.56 is: 14,263.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,719 : 25,832.22 = 10,335.56 : x
  2. Step 2: Convert to fraction form
    18,719/25,832.22 = 10,335.56/x
  3. Step 3: Cross multiply
    18,719x = 25,832.22 × 10,335.56
  4. Step 4: Simplify right side
    18,719x = 266,990,459.74
  5. Step 5: Solve for x
    x = 266,990,459.74/18,719
  6. Step 6: Final answer
    x = 14,263.07

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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.