Home / 18,972.63-28,405.35-10,637.73

Finding the Fourth Proportional to 18,972.63, 28,405.35 and 10,637.73

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Solution

The fourth proportional to 18,972.63, 28,405.35 and 10,637.73 is: 15,926.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,972.63 : 28,405.35 = 10,637.73 : x
  2. Step 2: Convert to fraction form
    18,972.63/28,405.35 = 10,637.73/x
  3. Step 3: Cross multiply
    18,972.63x = 28,405.35 × 10,637.73
  4. Step 4: Simplify right side
    18,972.63x = 302,168,443.86
  5. Step 5: Solve for x
    x = 302,168,443.86/18,972.63
  6. Step 6: Final answer
    x = 15,926.54

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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.