Home / 12,326.12-17,024.64-8,340.32

Finding the Fourth Proportional to 12,326.12, 17,024.64 and 8,340.32

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Solution

The fourth proportional to 12,326.12, 17,024.64 and 8,340.32 is: 11,519.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,326.12 : 17,024.64 = 8,340.32 : x
  2. Step 2: Convert to fraction form
    12,326.12/17,024.64 = 8,340.32/x
  3. Step 3: Cross multiply
    12,326.12x = 17,024.64 × 8,340.32
  4. Step 4: Simplify right side
    12,326.12x = 141,990,945.48
  5. Step 5: Solve for x
    x = 141,990,945.48/12,326.12
  6. Step 6: Final answer
    x = 11,519.52

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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.