Home / 18,379.17-25,366.50-10,419.84

Finding the Fourth Proportional to 18,379.17, 25,366.50 and 10,419.84

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Solution

The fourth proportional to 18,379.17, 25,366.50 and 10,419.84 is: 14,381.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,379.17 : 25,366.50 = 10,419.84 : x
  2. Step 2: Convert to fraction form
    18,379.17/25,366.50 = 10,419.84/x
  3. Step 3: Cross multiply
    18,379.17x = 25,366.50 × 10,419.84
  4. Step 4: Simplify right side
    18,379.17x = 264,314,871.36
  5. Step 5: Solve for x
    x = 264,314,871.36/18,379.17
  6. Step 6: Final answer
    x = 14,381.22

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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.