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Finding the Fourth Proportional to 11,843, 16,343.34 and 6,875

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Solution

The fourth proportional to 11,843, 16,343.34 and 6,875 is: 9,487.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,843 : 16,343.34 = 6,875 : x
  2. Step 2: Convert to fraction form
    11,843/16,343.34 = 6,875/x
  3. Step 3: Cross multiply
    11,843x = 16,343.34 × 6,875
  4. Step 4: Simplify right side
    11,843x = 112,360,462.50
  5. Step 5: Solve for x
    x = 112,360,462.50/11,843
  6. Step 6: Final answer
    x = 9,487.50

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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.