Home / 13,227.08-19,822.58-6,657.78

Finding the Fourth Proportional to 13,227.08, 19,822.58 and 6,657.78

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Solution

The fourth proportional to 13,227.08, 19,822.58 and 6,657.78 is: 9,977.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,227.08 : 19,822.58 = 6,657.78 : x
  2. Step 2: Convert to fraction form
    13,227.08/19,822.58 = 6,657.78/x
  3. Step 3: Cross multiply
    13,227.08x = 19,822.58 × 6,657.78
  4. Step 4: Simplify right side
    13,227.08x = 131,974,376.67
  5. Step 5: Solve for x
    x = 131,974,376.67/13,227.08
  6. Step 6: Final answer
    x = 9,977.59

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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.