Home / 14,264.82-19,686.03-7,891.30

Finding the Fourth Proportional to 14,264.82, 19,686.03 and 7,891.30

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Solution

The fourth proportional to 14,264.82, 19,686.03 and 7,891.30 is: 10,890.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,264.82 : 19,686.03 = 7,891.30 : x
  2. Step 2: Convert to fraction form
    14,264.82/19,686.03 = 7,891.30/x
  3. Step 3: Cross multiply
    14,264.82x = 19,686.03 × 7,891.30
  4. Step 4: Simplify right side
    14,264.82x = 155,348,289.73
  5. Step 5: Solve for x
    x = 155,348,289.73/14,264.82
  6. Step 6: Final answer
    x = 10,890.31

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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.