Home / 14,289.72-19,713.22-9,255.61

Finding the Fourth Proportional to 14,289.72, 19,713.22 and 9,255.61

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Solution

The fourth proportional to 14,289.72, 19,713.22 and 9,255.61 is: 12,768.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,289.72 : 19,713.22 = 9,255.61 : x
  2. Step 2: Convert to fraction form
    14,289.72/19,713.22 = 9,255.61/x
  3. Step 3: Cross multiply
    14,289.72x = 19,713.22 × 9,255.61
  4. Step 4: Simplify right side
    14,289.72x = 182,457,876.16
  5. Step 5: Solve for x
    x = 182,457,876.16/14,289.72
  6. Step 6: Final answer
    x = 12,768.47

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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.