Home / 18,669.96-25,756.32-12,288.33

Finding the Fourth Proportional to 18,669.96, 25,756.32 and 12,288.33

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Solution

The fourth proportional to 18,669.96, 25,756.32 and 12,288.33 is: 16,952.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,669.96 : 25,756.32 = 12,288.33 : x
  2. Step 2: Convert to fraction form
    18,669.96/25,756.32 = 12,288.33/x
  3. Step 3: Cross multiply
    18,669.96x = 25,756.32 × 12,288.33
  4. Step 4: Simplify right side
    18,669.96x = 316,502,159.75
  5. Step 5: Solve for x
    x = 316,502,159.75/18,669.96
  6. Step 6: Final answer
    x = 16,952.48

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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.