Home / 18,293.45-27,440.27-5,145.93

Finding the Fourth Proportional to 18,293.45, 27,440.27 and 5,145.93

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Solution

The fourth proportional to 18,293.45, 27,440.27 and 5,145.93 is: 7,718.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,293.45 : 27,440.27 = 5,145.93 : x
  2. Step 2: Convert to fraction form
    18,293.45/27,440.27 = 5,145.93/x
  3. Step 3: Cross multiply
    18,293.45x = 27,440.27 × 5,145.93
  4. Step 4: Simplify right side
    18,293.45x = 141,205,682.87
  5. Step 5: Solve for x
    x = 141,205,682.87/18,293.45
  6. Step 6: Final answer
    x = 7,718.92

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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.