Home / 15,415.50-21,268.44-9,444.18

Finding the Fourth Proportional to 15,415.50, 21,268.44 and 9,444.18

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Solution

The fourth proportional to 15,415.50, 21,268.44 and 9,444.18 is: 13,029.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,415.50 : 21,268.44 = 9,444.18 : x
  2. Step 2: Convert to fraction form
    15,415.50/21,268.44 = 9,444.18/x
  3. Step 3: Cross multiply
    15,415.50x = 21,268.44 × 9,444.18
  4. Step 4: Simplify right side
    15,415.50x = 200,862,975.68
  5. Step 5: Solve for x
    x = 200,862,975.68/15,415.50
  6. Step 6: Final answer
    x = 13,029.94

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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.