Home / 14,471.37-21,690.30-6,663.78

Finding the Fourth Proportional to 14,471.37, 21,690.30 and 6,663.78

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Solution

The fourth proportional to 14,471.37, 21,690.30 and 6,663.78 is: 9,987.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,471.37 : 21,690.30 = 6,663.78 : x
  2. Step 2: Convert to fraction form
    14,471.37/21,690.30 = 6,663.78/x
  3. Step 3: Cross multiply
    14,471.37x = 21,690.30 × 6,663.78
  4. Step 4: Simplify right side
    14,471.37x = 144,539,387.33
  5. Step 5: Solve for x
    x = 144,539,387.33/14,471.37
  6. Step 6: Final answer
    x = 9,987.95

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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.