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Finding the Fourth Proportional to 12,344.79, 18,508.98 and 6,800.76

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Solution

The fourth proportional to 12,344.79, 18,508.98 and 6,800.76 is: 10,196.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,344.79 : 18,508.98 = 6,800.76 : x
  2. Step 2: Convert to fraction form
    12,344.79/18,508.98 = 6,800.76/x
  3. Step 3: Cross multiply
    12,344.79x = 18,508.98 × 6,800.76
  4. Step 4: Simplify right side
    12,344.79x = 125,875,130.82
  5. Step 5: Solve for x
    x = 125,875,130.82/12,344.79
  6. Step 6: Final answer
    x = 10,196.62

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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.