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Finding the Fourth Proportional to 9,419.40, 12,999.03 and 6,068.70

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Solution

The fourth proportional to 9,419.40, 12,999.03 and 6,068.70 is: 8,374.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,419.40 : 12,999.03 = 6,068.70 : x
  2. Step 2: Convert to fraction form
    9,419.40/12,999.03 = 6,068.70/x
  3. Step 3: Cross multiply
    9,419.40x = 12,999.03 × 6,068.70
  4. Step 4: Simplify right side
    9,419.40x = 78,887,213.36
  5. Step 5: Solve for x
    x = 78,887,213.36/9,419.40
  6. Step 6: Final answer
    x = 8,374.97

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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.