Home / 14,135.72-19,510.84-8,170.86

Finding the Fourth Proportional to 14,135.72, 19,510.84 and 8,170.86

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Solution

The fourth proportional to 14,135.72, 19,510.84 and 8,170.86 is: 11,277.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,135.72 : 19,510.84 = 8,170.86 : x
  2. Step 2: Convert to fraction form
    14,135.72/19,510.84 = 8,170.86/x
  3. Step 3: Cross multiply
    14,135.72x = 19,510.84 × 8,170.86
  4. Step 4: Simplify right side
    14,135.72x = 159,420,342.12
  5. Step 5: Solve for x
    x = 159,420,342.12/14,135.72
  6. Step 6: Final answer
    x = 11,277.84

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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.