Home / 19,044.80-26,279.88-10,979.36

Finding the Fourth Proportional to 19,044.80, 26,279.88 and 10,979.36

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Solution

The fourth proportional to 19,044.80, 26,279.88 and 10,979.36 is: 15,150.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,044.80 : 26,279.88 = 10,979.36 : x
  2. Step 2: Convert to fraction form
    19,044.80/26,279.88 = 10,979.36/x
  3. Step 3: Cross multiply
    19,044.80x = 26,279.88 × 10,979.36
  4. Step 4: Simplify right side
    19,044.80x = 288,536,263.28
  5. Step 5: Solve for x
    x = 288,536,263.28/19,044.80
  6. Step 6: Final answer
    x = 15,150.40

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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.