Home / 12,387.06-17,098.05-8,359.74

Finding the Fourth Proportional to 12,387.06, 17,098.05 and 8,359.74

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Solution

The fourth proportional to 12,387.06, 17,098.05 and 8,359.74 is: 11,539.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387.06 : 17,098.05 = 8,359.74 : x
  2. Step 2: Convert to fraction form
    12,387.06/17,098.05 = 8,359.74/x
  3. Step 3: Cross multiply
    12,387.06x = 17,098.05 × 8,359.74
  4. Step 4: Simplify right side
    12,387.06x = 142,935,252.51
  5. Step 5: Solve for x
    x = 142,935,252.51/12,387.06
  6. Step 6: Final answer
    x = 11,539.08

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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.