Home / 18,426.81-25,429.41-10,875

Finding the Fourth Proportional to 18,426.81, 25,429.41 and 10,875

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Solution

The fourth proportional to 18,426.81, 25,429.41 and 10,875 is: 15,007.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,426.81 : 25,429.41 = 10,875 : x
  2. Step 2: Convert to fraction form
    18,426.81/25,429.41 = 10,875/x
  3. Step 3: Cross multiply
    18,426.81x = 25,429.41 × 10,875
  4. Step 4: Simplify right side
    18,426.81x = 276,544,833.75
  5. Step 5: Solve for x
    x = 276,544,833.75/18,426.81
  6. Step 6: Final answer
    x = 15,007.74

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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.