Home / 12,848.87-17,736.89-7,814.70

Finding the Fourth Proportional to 12,848.87, 17,736.89 and 7,814.70

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Solution

The fourth proportional to 12,848.87, 17,736.89 and 7,814.70 is: 10,787.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,848.87 : 17,736.89 = 7,814.70 : x
  2. Step 2: Convert to fraction form
    12,848.87/17,736.89 = 7,814.70/x
  3. Step 3: Cross multiply
    12,848.87x = 17,736.89 × 7,814.70
  4. Step 4: Simplify right side
    12,848.87x = 138,608,385.60
  5. Step 5: Solve for x
    x = 138,608,385.60/12,848.87
  6. Step 6: Final answer
    x = 10,787.60

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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.