Home / 13,064.40-19,611.36-5,278.68

Finding the Fourth Proportional to 13,064.40, 19,611.36 and 5,278.68

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Solution

The fourth proportional to 13,064.40, 19,611.36 and 5,278.68 is: 7,923.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,064.40 : 19,611.36 = 5,278.68 : x
  2. Step 2: Convert to fraction form
    13,064.40/19,611.36 = 5,278.68/x
  3. Step 3: Cross multiply
    13,064.40x = 19,611.36 × 5,278.68
  4. Step 4: Simplify right side
    13,064.40x = 103,522,093.80
  5. Step 5: Solve for x
    x = 103,522,093.80/13,064.40
  6. Step 6: Final answer
    x = 7,923.98

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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.