Home / 18,581.74-27,886.27-12,339.68

Finding the Fourth Proportional to 18,581.74, 27,886.27 and 12,339.68

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Solution

The fourth proportional to 18,581.74, 27,886.27 and 12,339.68 is: 18,518.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,581.74 : 27,886.27 = 12,339.68 : x
  2. Step 2: Convert to fraction form
    18,581.74/27,886.27 = 12,339.68/x
  3. Step 3: Cross multiply
    18,581.74x = 27,886.27 × 12,339.68
  4. Step 4: Simplify right side
    18,581.74x = 344,107,648.19
  5. Step 5: Solve for x
    x = 344,107,648.19/18,581.74
  6. Step 6: Final answer
    x = 18,518.59

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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.