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Finding the Fourth Proportional to 18,508.34, 27,762.42 and 4,657.34

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Solution

The fourth proportional to 18,508.34, 27,762.42 and 4,657.34 is: 6,985.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,508.34 : 27,762.42 = 4,657.34 : x
  2. Step 2: Convert to fraction form
    18,508.34/27,762.42 = 4,657.34/x
  3. Step 3: Cross multiply
    18,508.34x = 27,762.42 × 4,657.34
  4. Step 4: Simplify right side
    18,508.34x = 129,299,029.16
  5. Step 5: Solve for x
    x = 129,299,029.16/18,508.34
  6. Step 6: Final answer
    x = 6,985.99

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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.