Home / 12,278.64-16,943.94-6,972.76

Finding the Fourth Proportional to 12,278.64, 16,943.94 and 6,972.76

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Solution

The fourth proportional to 12,278.64, 16,943.94 and 6,972.76 is: 9,622.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,278.64 : 16,943.94 = 6,972.76 : x
  2. Step 2: Convert to fraction form
    12,278.64/16,943.94 = 6,972.76/x
  3. Step 3: Cross multiply
    12,278.64x = 16,943.94 × 6,972.76
  4. Step 4: Simplify right side
    12,278.64x = 118,146,027.07
  5. Step 5: Solve for x
    x = 118,146,027.07/12,278.64
  6. Step 6: Final answer
    x = 9,622.08

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Double scale
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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.