Home / 14,145.86-21,217.98-4,782.71

Finding the Fourth Proportional to 14,145.86, 21,217.98 and 4,782.71

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Solution

The fourth proportional to 14,145.86, 21,217.98 and 4,782.71 is: 7,173.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,145.86 : 21,217.98 = 4,782.71 : x
  2. Step 2: Convert to fraction form
    14,145.86/21,217.98 = 4,782.71/x
  3. Step 3: Cross multiply
    14,145.86x = 21,217.98 × 4,782.71
  4. Step 4: Simplify right side
    14,145.86x = 101,479,445.13
  5. Step 5: Solve for x
    x = 101,479,445.13/14,145.86
  6. Step 6: Final answer
    x = 7,173.79

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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.