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Finding the Fourth Proportional to 8,999.79, 13,502.73 and 5,670.54

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Solution

The fourth proportional to 8,999.79, 13,502.73 and 5,670.54 is: 8,507.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,999.79 : 13,502.73 = 5,670.54 : x
  2. Step 2: Convert to fraction form
    8,999.79/13,502.73 = 5,670.54/x
  3. Step 3: Cross multiply
    8,999.79x = 13,502.73 × 5,670.54
  4. Step 4: Simplify right side
    8,999.79x = 76,567,742.22
  5. Step 5: Solve for x
    x = 76,567,742.22/8,999.79
  6. Step 6: Final answer
    x = 8,507.73

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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.