Home / 14,104.80-19,442.04-11,115.68

Finding the Fourth Proportional to 14,104.80, 19,442.04 and 11,115.68

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Solution

The fourth proportional to 14,104.80, 19,442.04 and 11,115.68 is: 15,321.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,104.80 : 19,442.04 = 11,115.68 : x
  2. Step 2: Convert to fraction form
    14,104.80/19,442.04 = 11,115.68/x
  3. Step 3: Cross multiply
    14,104.80x = 19,442.04 × 11,115.68
  4. Step 4: Simplify right side
    14,104.80x = 216,111,495.19
  5. Step 5: Solve for x
    x = 216,111,495.19/14,104.80
  6. Step 6: Final answer
    x = 15,321.84

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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.