Home / 14,227.78-19,637.86-8,643.46

Finding the Fourth Proportional to 14,227.78, 19,637.86 and 8,643.46

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Solution

The fourth proportional to 14,227.78, 19,637.86 and 8,643.46 is: 11,930.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,227.78 : 19,637.86 = 8,643.46 : x
  2. Step 2: Convert to fraction form
    14,227.78/19,637.86 = 8,643.46/x
  3. Step 3: Cross multiply
    14,227.78x = 19,637.86 × 8,643.46
  4. Step 4: Simplify right side
    14,227.78x = 169,739,057.40
  5. Step 5: Solve for x
    x = 169,739,057.40/14,227.78
  6. Step 6: Final answer
    x = 11,930.12

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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.