Home / 19,976.40-27,567.44-11,479.08

Finding the Fourth Proportional to 19,976.40, 27,567.44 and 11,479.08

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Solution

The fourth proportional to 19,976.40, 27,567.44 and 11,479.08 is: 15,841.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,976.40 : 27,567.44 = 11,479.08 : x
  2. Step 2: Convert to fraction form
    19,976.40/27,567.44 = 11,479.08/x
  3. Step 3: Cross multiply
    19,976.40x = 27,567.44 × 11,479.08
  4. Step 4: Simplify right side
    19,976.40x = 316,448,849.16
  5. Step 5: Solve for x
    x = 316,448,849.16/19,976.40
  6. Step 6: Final answer
    x = 15,841.13

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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.