Home / 18,740.52-28,111.32-10,838.16

Finding the Fourth Proportional to 18,740.52, 28,111.32 and 10,838.16

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Solution

The fourth proportional to 18,740.52, 28,111.32 and 10,838.16 is: 16,257.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,740.52 : 28,111.32 = 10,838.16 : x
  2. Step 2: Convert to fraction form
    18,740.52/28,111.32 = 10,838.16/x
  3. Step 3: Cross multiply
    18,740.52x = 28,111.32 × 10,838.16
  4. Step 4: Simplify right side
    18,740.52x = 304,674,983.97
  5. Step 5: Solve for x
    x = 304,674,983.97/18,740.52
  6. Step 6: Final answer
    x = 16,257.55

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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.