Home / 14,347.15-21,519.89-6,447.63

Finding the Fourth Proportional to 14,347.15, 21,519.89 and 6,447.63

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Solution

The fourth proportional to 14,347.15, 21,519.89 and 6,447.63 is: 9,671.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,347.15 : 21,519.89 = 6,447.63 : x
  2. Step 2: Convert to fraction form
    14,347.15/21,519.89 = 6,447.63/x
  3. Step 3: Cross multiply
    14,347.15x = 21,519.89 × 6,447.63
  4. Step 4: Simplify right side
    14,347.15x = 138,752,288.36
  5. Step 5: Solve for x
    x = 138,752,288.36/14,347.15
  6. Step 6: Final answer
    x = 9,671.07

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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.