Home / 18,631.24-25,711.32-10,133.36

Finding the Fourth Proportional to 18,631.24, 25,711.32 and 10,133.36

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Solution

The fourth proportional to 18,631.24, 25,711.32 and 10,133.36 is: 13,984.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,631.24 : 25,711.32 = 10,133.36 : x
  2. Step 2: Convert to fraction form
    18,631.24/25,711.32 = 10,133.36/x
  3. Step 3: Cross multiply
    18,631.24x = 25,711.32 × 10,133.36
  4. Step 4: Simplify right side
    18,631.24x = 260,542,061.64
  5. Step 5: Solve for x
    x = 260,542,061.64/18,631.24
  6. Step 6: Final answer
    x = 13,984.15

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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.