Home / 10,367.51-14,309.21-7,221.88

Finding the Fourth Proportional to 10,367.51, 14,309.21 and 7,221.88

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Solution

The fourth proportional to 10,367.51, 14,309.21 and 7,221.88 is: 9,967.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,367.51 : 14,309.21 = 7,221.88 : x
  2. Step 2: Convert to fraction form
    10,367.51/14,309.21 = 7,221.88/x
  3. Step 3: Cross multiply
    10,367.51x = 14,309.21 × 7,221.88
  4. Step 4: Simplify right side
    10,367.51x = 103,339,289.86
  5. Step 5: Solve for x
    x = 103,339,289.86/10,367.51
  6. Step 6: Final answer
    x = 9,967.61

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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.