Home / 11,359.77-15,642.78-8,167.45

Finding the Fourth Proportional to 11,359.77, 15,642.78 and 8,167.45

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Solution

The fourth proportional to 11,359.77, 15,642.78 and 8,167.45 is: 11,246.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,359.77 : 15,642.78 = 8,167.45 : x
  2. Step 2: Convert to fraction form
    11,359.77/15,642.78 = 8,167.45/x
  3. Step 3: Cross multiply
    11,359.77x = 15,642.78 × 8,167.45
  4. Step 4: Simplify right side
    11,359.77x = 127,761,623.51
  5. Step 5: Solve for x
    x = 127,761,623.51/11,359.77
  6. Step 6: Final answer
    x = 11,246.85

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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.