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Finding the Fourth Proportional to 18,417.83, 27,627.01 and 5,270.21

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Solution

The fourth proportional to 18,417.83, 27,627.01 and 5,270.21 is: 7,905.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,417.83 : 27,627.01 = 5,270.21 : x
  2. Step 2: Convert to fraction form
    18,417.83/27,627.01 = 5,270.21/x
  3. Step 3: Cross multiply
    18,417.83x = 27,627.01 × 5,270.21
  4. Step 4: Simplify right side
    18,417.83x = 145,600,252.06
  5. Step 5: Solve for x
    x = 145,600,252.06/18,417.83
  6. Step 6: Final answer
    x = 7,905.40

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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.