Home / 18,747.63-28,135.35-8,886.93

Finding the Fourth Proportional to 18,747.63, 28,135.35 and 8,886.93

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Solution

The fourth proportional to 18,747.63, 28,135.35 and 8,886.93 is: 13,336.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,747.63 : 28,135.35 = 8,886.93 : x
  2. Step 2: Convert to fraction form
    18,747.63/28,135.35 = 8,886.93/x
  3. Step 3: Cross multiply
    18,747.63x = 28,135.35 × 8,886.93
  4. Step 4: Simplify right side
    18,747.63x = 250,036,885.98
  5. Step 5: Solve for x
    x = 250,036,885.98/18,747.63
  6. Step 6: Final answer
    x = 13,336.99

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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.