Home / 11,102.16-15,318.72-6,624.48

Finding the Fourth Proportional to 11,102.16, 15,318.72 and 6,624.48

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Solution

The fourth proportional to 11,102.16, 15,318.72 and 6,624.48 is: 9,140.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,102.16 : 15,318.72 = 6,624.48 : x
  2. Step 2: Convert to fraction form
    11,102.16/15,318.72 = 6,624.48/x
  3. Step 3: Cross multiply
    11,102.16x = 15,318.72 × 6,624.48
  4. Step 4: Simplify right side
    11,102.16x = 101,478,554.27
  5. Step 5: Solve for x
    x = 101,478,554.27/11,102.16
  6. Step 6: Final answer
    x = 9,140.43

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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.