Home / 13,121.53-19,677.50-4,799.08

Finding the Fourth Proportional to 13,121.53, 19,677.50 and 4,799.08

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Solution

The fourth proportional to 13,121.53, 19,677.50 and 4,799.08 is: 7,196.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,121.53 : 19,677.50 = 4,799.08 : x
  2. Step 2: Convert to fraction form
    13,121.53/19,677.50 = 4,799.08/x
  3. Step 3: Cross multiply
    13,121.53x = 19,677.50 × 4,799.08
  4. Step 4: Simplify right side
    13,121.53x = 94,433,896.70
  5. Step 5: Solve for x
    x = 94,433,896.70/13,121.53
  6. Step 6: Final answer
    x = 7,196.87

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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.