Home / 13,318.08-18,373.14-8,009.88

Finding the Fourth Proportional to 13,318.08, 18,373.14 and 8,009.88

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Solution

The fourth proportional to 13,318.08, 18,373.14 and 8,009.88 is: 11,050.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,318.08 : 18,373.14 = 8,009.88 : x
  2. Step 2: Convert to fraction form
    13,318.08/18,373.14 = 8,009.88/x
  3. Step 3: Cross multiply
    13,318.08x = 18,373.14 × 8,009.88
  4. Step 4: Simplify right side
    13,318.08x = 147,166,646.62
  5. Step 5: Solve for x
    x = 147,166,646.62/13,318.08
  6. Step 6: Final answer
    x = 11,050.14

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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.