Home / 15,247.40-21,051.78-11,704.36

Finding the Fourth Proportional to 15,247.40, 21,051.78 and 11,704.36

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Solution

The fourth proportional to 15,247.40, 21,051.78 and 11,704.36 is: 16,159.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,247.40 : 21,051.78 = 11,704.36 : x
  2. Step 2: Convert to fraction form
    15,247.40/21,051.78 = 11,704.36/x
  3. Step 3: Cross multiply
    15,247.40x = 21,051.78 × 11,704.36
  4. Step 4: Simplify right side
    15,247.40x = 246,397,611.76
  5. Step 5: Solve for x
    x = 246,397,611.76/15,247.40
  6. Step 6: Final answer
    x = 16,159.98

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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.