Home / 12,299.20-16,972.80-6,710.08

Finding the Fourth Proportional to 12,299.20, 16,972.80 and 6,710.08

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Solution

The fourth proportional to 12,299.20, 16,972.80 and 6,710.08 is: 9,259.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,299.20 : 16,972.80 = 6,710.08 : x
  2. Step 2: Convert to fraction form
    12,299.20/16,972.80 = 6,710.08/x
  3. Step 3: Cross multiply
    12,299.20x = 16,972.80 × 6,710.08
  4. Step 4: Simplify right side
    12,299.20x = 113,888,845.82
  5. Step 5: Solve for x
    x = 113,888,845.82/12,299.20
  6. Step 6: Final answer
    x = 9,259.86

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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.