Home / 12,456.36-17,190.96-9,307.08

Finding the Fourth Proportional to 12,456.36, 17,190.96 and 9,307.08

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Solution

The fourth proportional to 12,456.36, 17,190.96 and 9,307.08 is: 12,844.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,456.36 : 17,190.96 = 9,307.08 : x
  2. Step 2: Convert to fraction form
    12,456.36/17,190.96 = 9,307.08/x
  3. Step 3: Cross multiply
    12,456.36x = 17,190.96 × 9,307.08
  4. Step 4: Simplify right side
    12,456.36x = 159,997,640.00
  5. Step 5: Solve for x
    x = 159,997,640.00/12,456.36
  6. Step 6: Final answer
    x = 12,844.65

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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.