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Finding the Fourth Proportional to 18,588.79, 27,890.02 and 8,598.35

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Solution

The fourth proportional to 18,588.79, 27,890.02 and 8,598.35 is: 12,900.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,588.79 : 27,890.02 = 8,598.35 : x
  2. Step 2: Convert to fraction form
    18,588.79/27,890.02 = 8,598.35/x
  3. Step 3: Cross multiply
    18,588.79x = 27,890.02 × 8,598.35
  4. Step 4: Simplify right side
    18,588.79x = 239,808,233.94
  5. Step 5: Solve for x
    x = 239,808,233.94/18,588.79
  6. Step 6: Final answer
    x = 12,900.69

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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.