Home / 15,071.06-20,797.70-8,356.62

Finding the Fourth Proportional to 15,071.06, 20,797.70 and 8,356.62

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Solution

The fourth proportional to 15,071.06, 20,797.70 and 8,356.62 is: 11,531.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,071.06 : 20,797.70 = 8,356.62 : x
  2. Step 2: Convert to fraction form
    15,071.06/20,797.70 = 8,356.62/x
  3. Step 3: Cross multiply
    15,071.06x = 20,797.70 × 8,356.62
  4. Step 4: Simplify right side
    15,071.06x = 173,798,496.67
  5. Step 5: Solve for x
    x = 173,798,496.67/15,071.06
  6. Step 6: Final answer
    x = 11,531.94

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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.