Home / 15,322.60-21,138.24-9,653.41

Finding the Fourth Proportional to 15,322.60, 21,138.24 and 9,653.41

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Solution

The fourth proportional to 15,322.60, 21,138.24 and 9,653.41 is: 13,317.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,322.60 : 21,138.24 = 9,653.41 : x
  2. Step 2: Convert to fraction form
    15,322.60/21,138.24 = 9,653.41/x
  3. Step 3: Cross multiply
    15,322.60x = 21,138.24 × 9,653.41
  4. Step 4: Simplify right side
    15,322.60x = 204,056,097.40
  5. Step 5: Solve for x
    x = 204,056,097.40/15,322.60
  6. Step 6: Final answer
    x = 13,317.33

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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.