Home / 18,323.57-25,288.35-11,153.99

Finding the Fourth Proportional to 18,323.57, 25,288.35 and 11,153.99

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Solution

The fourth proportional to 18,323.57, 25,288.35 and 11,153.99 is: 15,393.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,323.57 : 25,288.35 = 11,153.99 : x
  2. Step 2: Convert to fraction form
    18,323.57/25,288.35 = 11,153.99/x
  3. Step 3: Cross multiply
    18,323.57x = 25,288.35 × 11,153.99
  4. Step 4: Simplify right side
    18,323.57x = 282,066,003.02
  5. Step 5: Solve for x
    x = 282,066,003.02/18,323.57
  6. Step 6: Final answer
    x = 15,393.62

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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.