Home / 14,003.31-21,004.98-13,147.95

Finding the Fourth Proportional to 14,003.31, 21,004.98 and 13,147.95

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Solution

The fourth proportional to 14,003.31, 21,004.98 and 13,147.95 is: 19,721.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,003.31 : 21,004.98 = 13,147.95 : x
  2. Step 2: Convert to fraction form
    14,003.31/21,004.98 = 13,147.95/x
  3. Step 3: Cross multiply
    14,003.31x = 21,004.98 × 13,147.95
  4. Step 4: Simplify right side
    14,003.31x = 276,172,426.79
  5. Step 5: Solve for x
    x = 276,172,426.79/14,003.31
  6. Step 6: Final answer
    x = 19,721.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.