Home / 12,254.43-16,914.59-7,221.57

Finding the Fourth Proportional to 12,254.43, 16,914.59 and 7,221.57

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Solution

The fourth proportional to 12,254.43, 16,914.59 and 7,221.57 is: 9,967.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,254.43 : 16,914.59 = 7,221.57 : x
  2. Step 2: Convert to fraction form
    12,254.43/16,914.59 = 7,221.57/x
  3. Step 3: Cross multiply
    12,254.43x = 16,914.59 × 7,221.57
  4. Step 4: Simplify right side
    12,254.43x = 122,149,895.71
  5. Step 5: Solve for x
    x = 122,149,895.71/12,254.43
  6. Step 6: Final answer
    x = 9,967.82

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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.