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Finding the Fourth Proportional to 8,900.08, 12,282.24 and 5,174.08

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Solution

The fourth proportional to 8,900.08, 12,282.24 and 5,174.08 is: 7,140.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,900.08 : 12,282.24 = 5,174.08 : x
  2. Step 2: Convert to fraction form
    8,900.08/12,282.24 = 5,174.08/x
  3. Step 3: Cross multiply
    8,900.08x = 12,282.24 × 5,174.08
  4. Step 4: Simplify right side
    8,900.08x = 63,549,292.34
  5. Step 5: Solve for x
    x = 63,549,292.34/8,900.08
  6. Step 6: Final answer
    x = 7,140.31

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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.