Home / 18,747.69-28,135.34-8,886.93

Finding the Fourth Proportional to 18,747.69, 28,135.34 and 8,886.93

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Solution

The fourth proportional to 18,747.69, 28,135.34 and 8,886.93 is: 13,336.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,747.69 : 28,135.34 = 8,886.93 : x
  2. Step 2: Convert to fraction form
    18,747.69/28,135.34 = 8,886.93/x
  3. Step 3: Cross multiply
    18,747.69x = 28,135.34 × 8,886.93
  4. Step 4: Simplify right side
    18,747.69x = 250,036,730.48
  5. Step 5: Solve for x
    x = 250,036,730.48/18,747.69
  6. Step 6: Final answer
    x = 13,336.94

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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.