Home / 16,402.88-22,632.32-9,688.79

Finding the Fourth Proportional to 16,402.88, 22,632.32 and 9,688.79

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Solution

The fourth proportional to 16,402.88, 22,632.32 and 9,688.79 is: 13,368.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,402.88 : 22,632.32 = 9,688.79 : x
  2. Step 2: Convert to fraction form
    16,402.88/22,632.32 = 9,688.79/x
  3. Step 3: Cross multiply
    16,402.88x = 22,632.32 × 9,688.79
  4. Step 4: Simplify right side
    16,402.88x = 219,279,634.09
  5. Step 5: Solve for x
    x = 219,279,634.09/16,402.88
  6. Step 6: Final answer
    x = 13,368.37

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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.