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Finding the Fourth Proportional to 18,200.16, 27,300.78 and 5,053.50

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Solution

The fourth proportional to 18,200.16, 27,300.78 and 5,053.50 is: 7,580.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,200.16 : 27,300.78 = 5,053.50 : x
  2. Step 2: Convert to fraction form
    18,200.16/27,300.78 = 5,053.50/x
  3. Step 3: Cross multiply
    18,200.16x = 27,300.78 × 5,053.50
  4. Step 4: Simplify right side
    18,200.16x = 137,964,491.73
  5. Step 5: Solve for x
    x = 137,964,491.73/18,200.16
  6. Step 6: Final answer
    x = 7,580.40

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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.