Home / 18,749.39-28,137.93-8,888.70

Finding the Fourth Proportional to 18,749.39, 28,137.93 and 8,888.70

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Solution

The fourth proportional to 18,749.39, 28,137.93 and 8,888.70 is: 13,339.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,749.39 : 28,137.93 = 8,888.70 : x
  2. Step 2: Convert to fraction form
    18,749.39/28,137.93 = 8,888.70/x
  3. Step 3: Cross multiply
    18,749.39x = 28,137.93 × 8,888.70
  4. Step 4: Simplify right side
    18,749.39x = 250,109,740.57
  5. Step 5: Solve for x
    x = 250,109,740.57/18,749.39
  6. Step 6: Final answer
    x = 13,339.62

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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.