Home / 14,157.18-21,235.14-6,766.74

Finding the Fourth Proportional to 14,157.18, 21,235.14 and 6,766.74

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Solution

The fourth proportional to 14,157.18, 21,235.14 and 6,766.74 is: 10,149.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,157.18 : 21,235.14 = 6,766.74 : x
  2. Step 2: Convert to fraction form
    14,157.18/21,235.14 = 6,766.74/x
  3. Step 3: Cross multiply
    14,157.18x = 21,235.14 × 6,766.74
  4. Step 4: Simplify right side
    14,157.18x = 143,692,671.24
  5. Step 5: Solve for x
    x = 143,692,671.24/14,157.18
  6. Step 6: Final answer
    x = 10,149.81

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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.