Home / 15,412.24-21,268.74-8,338.51

Finding the Fourth Proportional to 15,412.24, 21,268.74 and 8,338.51

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Solution

The fourth proportional to 15,412.24, 21,268.74 and 8,338.51 is: 11,507.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,412.24 : 21,268.74 = 8,338.51 : x
  2. Step 2: Convert to fraction form
    15,412.24/21,268.74 = 8,338.51/x
  3. Step 3: Cross multiply
    15,412.24x = 21,268.74 × 8,338.51
  4. Step 4: Simplify right side
    15,412.24x = 177,349,601.18
  5. Step 5: Solve for x
    x = 177,349,601.18/15,412.24
  6. Step 6: Final answer
    x = 11,507.06

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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.