Home / 12,975.48-17,888.46-9,187.32

Finding the Fourth Proportional to 12,975.48, 17,888.46 and 9,187.32

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Solution

The fourth proportional to 12,975.48, 17,888.46 and 9,187.32 is: 12,665.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,975.48 : 17,888.46 = 9,187.32 : x
  2. Step 2: Convert to fraction form
    12,975.48/17,888.46 = 9,187.32/x
  3. Step 3: Cross multiply
    12,975.48x = 17,888.46 × 9,187.32
  4. Step 4: Simplify right side
    12,975.48x = 164,347,006.33
  5. Step 5: Solve for x
    x = 164,347,006.33/12,975.48
  6. Step 6: Final answer
    x = 12,665.97

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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.