Home / 14,155.12-21,232.32-6,764.80

Finding the Fourth Proportional to 14,155.12, 21,232.32 and 6,764.80

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Solution

The fourth proportional to 14,155.12, 21,232.32 and 6,764.80 is: 10,147.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,155.12 : 21,232.32 = 6,764.80 : x
  2. Step 2: Convert to fraction form
    14,155.12/21,232.32 = 6,764.80/x
  3. Step 3: Cross multiply
    14,155.12x = 21,232.32 × 6,764.80
  4. Step 4: Simplify right side
    14,155.12x = 143,632,398.34
  5. Step 5: Solve for x
    x = 143,632,398.34/14,155.12
  6. Step 6: Final answer
    x = 10,147.03

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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.