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Finding the Fourth Proportional to 13,152.08, 18,155 and 8,901.06

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Solution

The fourth proportional to 13,152.08, 18,155 and 8,901.06 is: 12,286.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,152.08 : 18,155 = 8,901.06 : x
  2. Step 2: Convert to fraction form
    13,152.08/18,155 = 8,901.06/x
  3. Step 3: Cross multiply
    13,152.08x = 18,155 × 8,901.06
  4. Step 4: Simplify right side
    13,152.08x = 161,598,744.30
  5. Step 5: Solve for x
    x = 161,598,744.30/13,152.08
  6. Step 6: Final answer
    x = 12,286.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.