Home / 15,713.06-21,658.77-14,425.47

Finding the Fourth Proportional to 15,713.06, 21,658.77 and 14,425.47

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Solution

The fourth proportional to 15,713.06, 21,658.77 and 14,425.47 is: 19,883.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,713.06 : 21,658.77 = 14,425.47 : x
  2. Step 2: Convert to fraction form
    15,713.06/21,658.77 = 14,425.47/x
  3. Step 3: Cross multiply
    15,713.06x = 21,658.77 × 14,425.47
  4. Step 4: Simplify right side
    15,713.06x = 312,437,936.87
  5. Step 5: Solve for x
    x = 312,437,936.87/15,713.06
  6. Step 6: Final answer
    x = 19,883.97

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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.