Home / 18,311.36-25,268.96-9,927.68

Finding the Fourth Proportional to 18,311.36, 25,268.96 and 9,927.68

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Solution

The fourth proportional to 18,311.36, 25,268.96 and 9,927.68 is: 13,699.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,311.36 : 25,268.96 = 9,927.68 : x
  2. Step 2: Convert to fraction form
    18,311.36/25,268.96 = 9,927.68/x
  3. Step 3: Cross multiply
    18,311.36x = 25,268.96 × 9,927.68
  4. Step 4: Simplify right side
    18,311.36x = 250,862,148.81
  5. Step 5: Solve for x
    x = 250,862,148.81/18,311.36
  6. Step 6: Final answer
    x = 13,699.81

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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.