Home / 19,887.15-27,443.64-10,934.63

Finding the Fourth Proportional to 19,887.15, 27,443.64 and 10,934.63

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Solution

The fourth proportional to 19,887.15, 27,443.64 and 10,934.63 is: 15,089.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,887.15 : 27,443.64 = 10,934.63 : x
  2. Step 2: Convert to fraction form
    19,887.15/27,443.64 = 10,934.63/x
  3. Step 3: Cross multiply
    19,887.15x = 27,443.64 × 10,934.63
  4. Step 4: Simplify right side
    19,887.15x = 300,086,055.95
  5. Step 5: Solve for x
    x = 300,086,055.95/19,887.15
  6. Step 6: Final answer
    x = 15,089.44

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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.