Home / 18,288.96-25,238.76-9,905.46

Finding the Fourth Proportional to 18,288.96, 25,238.76 and 9,905.46

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Solution

The fourth proportional to 18,288.96, 25,238.76 and 9,905.46 is: 13,669.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,288.96 : 25,238.76 = 9,905.46 : x
  2. Step 2: Convert to fraction form
    18,288.96/25,238.76 = 9,905.46/x
  3. Step 3: Cross multiply
    18,288.96x = 25,238.76 × 9,905.46
  4. Step 4: Simplify right side
    18,288.96x = 250,001,527.63
  5. Step 5: Solve for x
    x = 250,001,527.63/18,288.96
  6. Step 6: Final answer
    x = 13,669.53

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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.