Home / 12,976.23-17,888.54-9,243.75

Finding the Fourth Proportional to 12,976.23, 17,888.54 and 9,243.75

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Solution

The fourth proportional to 12,976.23, 17,888.54 and 9,243.75 is: 12,743.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,976.23 : 17,888.54 = 9,243.75 : x
  2. Step 2: Convert to fraction form
    12,976.23/17,888.54 = 9,243.75/x
  3. Step 3: Cross multiply
    12,976.23x = 17,888.54 × 9,243.75
  4. Step 4: Simplify right side
    12,976.23x = 165,357,145.41
  5. Step 5: Solve for x
    x = 165,357,145.41/12,976.23
  6. Step 6: Final answer
    x = 12,743.08

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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.