Home / 18,838.84-28,260.60-5,691.16

Finding the Fourth Proportional to 18,838.84, 28,260.60 and 5,691.16

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Solution

The fourth proportional to 18,838.84, 28,260.60 and 5,691.16 is: 8,537.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,838.84 : 28,260.60 = 5,691.16 : x
  2. Step 2: Convert to fraction form
    18,838.84/28,260.60 = 5,691.16/x
  3. Step 3: Cross multiply
    18,838.84x = 28,260.60 × 5,691.16
  4. Step 4: Simplify right side
    18,838.84x = 160,835,596.30
  5. Step 5: Solve for x
    x = 160,835,596.30/18,838.84
  6. Step 6: Final answer
    x = 8,537.45

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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.