Home / 18,924.84-28,358.06-11,984.76

Finding the Fourth Proportional to 18,924.84, 28,358.06 and 11,984.76

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Solution

The fourth proportional to 18,924.84, 28,358.06 and 11,984.76 is: 17,958.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,924.84 : 28,358.06 = 11,984.76 : x
  2. Step 2: Convert to fraction form
    18,924.84/28,358.06 = 11,984.76/x
  3. Step 3: Cross multiply
    18,924.84x = 28,358.06 × 11,984.76
  4. Step 4: Simplify right side
    18,924.84x = 339,864,543.17
  5. Step 5: Solve for x
    x = 339,864,543.17/18,924.84
  6. Step 6: Final answer
    x = 17,958.65

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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.