Home / 18,707.60-25,764-18,299.36

Finding the Fourth Proportional to 18,707.60, 25,764 and 18,299.36

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Solution

The fourth proportional to 18,707.60, 25,764 and 18,299.36 is: 25,201.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,707.60 : 25,764 = 18,299.36 : x
  2. Step 2: Convert to fraction form
    18,707.60/25,764 = 18,299.36/x
  3. Step 3: Cross multiply
    18,707.60x = 25,764 × 18,299.36
  4. Step 4: Simplify right side
    18,707.60x = 471,464,711.04
  5. Step 5: Solve for x
    x = 471,464,711.04/18,707.60
  6. Step 6: Final answer
    x = 25,201.77

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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.