Home / 18,421.52-27,636.42-6,734.63

Finding the Fourth Proportional to 18,421.52, 27,636.42 and 6,734.63

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Solution

The fourth proportional to 18,421.52, 27,636.42 and 6,734.63 is: 10,103.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,421.52 : 27,636.42 = 6,734.63 : x
  2. Step 2: Convert to fraction form
    18,421.52/27,636.42 = 6,734.63/x
  3. Step 3: Cross multiply
    18,421.52x = 27,636.42 × 6,734.63
  4. Step 4: Simplify right side
    18,421.52x = 186,120,925.04
  5. Step 5: Solve for x
    x = 186,120,925.04/18,421.52
  6. Step 6: Final answer
    x = 10,103.45

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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.