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Finding the Fourth Proportional to 12,349.26, 17,030.94 and 8,999.88

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Solution

The fourth proportional to 12,349.26, 17,030.94 and 8,999.88 is: 12,411.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,349.26 : 17,030.94 = 8,999.88 : x
  2. Step 2: Convert to fraction form
    12,349.26/17,030.94 = 8,999.88/x
  3. Step 3: Cross multiply
    12,349.26x = 17,030.94 × 8,999.88
  4. Step 4: Simplify right side
    12,349.26x = 153,276,416.29
  5. Step 5: Solve for x
    x = 153,276,416.29/12,349.26
  6. Step 6: Final answer
    x = 12,411.79

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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.