Home / 14,425.88-19,897.30-11,139.54

Finding the Fourth Proportional to 14,425.88, 19,897.30 and 11,139.54

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Solution

The fourth proportional to 14,425.88, 19,897.30 and 11,139.54 is: 15,364.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,425.88 : 19,897.30 = 11,139.54 : x
  2. Step 2: Convert to fraction form
    14,425.88/19,897.30 = 11,139.54/x
  3. Step 3: Cross multiply
    14,425.88x = 19,897.30 × 11,139.54
  4. Step 4: Simplify right side
    14,425.88x = 221,646,769.24
  5. Step 5: Solve for x
    x = 221,646,769.24/14,425.88
  6. Step 6: Final answer
    x = 15,364.52

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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.