Home / 15,412.04-21,268.59-8,338.47

Finding the Fourth Proportional to 15,412.04, 21,268.59 and 8,338.47

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Solution

The fourth proportional to 15,412.04, 21,268.59 and 8,338.47 is: 11,507.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,412.04 : 21,268.59 = 8,338.47 : x
  2. Step 2: Convert to fraction form
    15,412.04/21,268.59 = 8,338.47/x
  3. Step 3: Cross multiply
    15,412.04x = 21,268.59 × 8,338.47
  4. Step 4: Simplify right side
    15,412.04x = 177,347,499.66
  5. Step 5: Solve for x
    x = 177,347,499.66/15,412.04
  6. Step 6: Final answer
    x = 11,507.08

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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.