Home / 19,239.80-26,557.47-11,279.12

Finding the Fourth Proportional to 19,239.80, 26,557.47 and 11,279.12

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Solution

The fourth proportional to 19,239.80, 26,557.47 and 11,279.12 is: 15,569.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,239.80 : 26,557.47 = 11,279.12 : x
  2. Step 2: Convert to fraction form
    19,239.80/26,557.47 = 11,279.12/x
  3. Step 3: Cross multiply
    19,239.80x = 26,557.47 × 11,279.12
  4. Step 4: Simplify right side
    19,239.80x = 299,544,758.24
  5. Step 5: Solve for x
    x = 299,544,758.24/19,239.80
  6. Step 6: Final answer
    x = 15,569.02

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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.