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Finding the Fourth Proportional to 18,541.60, 27,809.70 and 5,392.60

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Solution

The fourth proportional to 18,541.60, 27,809.70 and 5,392.60 is: 8,088.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,541.60 : 27,809.70 = 5,392.60 : x
  2. Step 2: Convert to fraction form
    18,541.60/27,809.70 = 5,392.60/x
  3. Step 3: Cross multiply
    18,541.60x = 27,809.70 × 5,392.60
  4. Step 4: Simplify right side
    18,541.60x = 149,966,588.22
  5. Step 5: Solve for x
    x = 149,966,588.22/18,541.60
  6. Step 6: Final answer
    x = 8,088.11

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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.