Home / 15,704.14-21,671.74-8,630.98

Finding the Fourth Proportional to 15,704.14, 21,671.74 and 8,630.98

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Solution

The fourth proportional to 15,704.14, 21,671.74 and 8,630.98 is: 11,910.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,704.14 : 21,671.74 = 8,630.98 : x
  2. Step 2: Convert to fraction form
    15,704.14/21,671.74 = 8,630.98/x
  3. Step 3: Cross multiply
    15,704.14x = 21,671.74 × 8,630.98
  4. Step 4: Simplify right side
    15,704.14x = 187,048,354.51
  5. Step 5: Solve for x
    x = 187,048,354.51/15,704.14
  6. Step 6: Final answer
    x = 11,910.77

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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.