Home / 13,517.60-18,646.80-7,927.52

Finding the Fourth Proportional to 13,517.60, 18,646.80 and 7,927.52

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Solution

The fourth proportional to 13,517.60, 18,646.80 and 7,927.52 is: 10,935.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,517.60 : 18,646.80 = 7,927.52 : x
  2. Step 2: Convert to fraction form
    13,517.60/18,646.80 = 7,927.52/x
  3. Step 3: Cross multiply
    13,517.60x = 18,646.80 × 7,927.52
  4. Step 4: Simplify right side
    13,517.60x = 147,822,879.94
  5. Step 5: Solve for x
    x = 147,822,879.94/13,517.60
  6. Step 6: Final answer
    x = 10,935.59

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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.