Home / 18,411.81-27,621.15-10,087.23

Finding the Fourth Proportional to 18,411.81, 27,621.15 and 10,087.23

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Solution

The fourth proportional to 18,411.81, 27,621.15 and 10,087.23 is: 15,132.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,411.81 : 27,621.15 = 10,087.23 : x
  2. Step 2: Convert to fraction form
    18,411.81/27,621.15 = 10,087.23/x
  3. Step 3: Cross multiply
    18,411.81x = 27,621.15 × 10,087.23
  4. Step 4: Simplify right side
    18,411.81x = 278,620,892.91
  5. Step 5: Solve for x
    x = 278,620,892.91/18,411.81
  6. Step 6: Final answer
    x = 15,132.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.