Home / 18,637.96-25,728.40-13,323.56

Finding the Fourth Proportional to 18,637.96, 25,728.40 and 13,323.56

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Solution

The fourth proportional to 18,637.96, 25,728.40 and 13,323.56 is: 18,392.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,637.96 : 25,728.40 = 13,323.56 : x
  2. Step 2: Convert to fraction form
    18,637.96/25,728.40 = 13,323.56/x
  3. Step 3: Cross multiply
    18,637.96x = 25,728.40 × 13,323.56
  4. Step 4: Simplify right side
    18,637.96x = 342,793,881.10
  5. Step 5: Solve for x
    x = 342,793,881.10/18,637.96
  6. Step 6: Final answer
    x = 18,392.24

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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.