Home / 14,279.22-19,701.36-8,313.84

Finding the Fourth Proportional to 14,279.22, 19,701.36 and 8,313.84

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Solution

The fourth proportional to 14,279.22, 19,701.36 and 8,313.84 is: 11,470.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,279.22 : 19,701.36 = 8,313.84 : x
  2. Step 2: Convert to fraction form
    14,279.22/19,701.36 = 8,313.84/x
  3. Step 3: Cross multiply
    14,279.22x = 19,701.36 × 8,313.84
  4. Step 4: Simplify right side
    14,279.22x = 163,793,954.82
  5. Step 5: Solve for x
    x = 163,793,954.82/14,279.22
  6. Step 6: Final answer
    x = 11,470.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.