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Finding the Fourth Proportional to 18,459, 27,688.24 and 8,592.76

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Solution

The fourth proportional to 18,459, 27,688.24 and 8,592.76 is: 12,889.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,459 : 27,688.24 = 8,592.76 : x
  2. Step 2: Convert to fraction form
    18,459/27,688.24 = 8,592.76/x
  3. Step 3: Cross multiply
    18,459x = 27,688.24 × 8,592.76
  4. Step 4: Simplify right side
    18,459x = 237,918,401.14
  5. Step 5: Solve for x
    x = 237,918,401.14/18,459
  6. Step 6: Final answer
    x = 12,889.02

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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.