Home / 12,726.07-19,089.10-3,960.98

Finding the Fourth Proportional to 12,726.07, 19,089.10 and 3,960.98

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Solution

The fourth proportional to 12,726.07, 19,089.10 and 3,960.98 is: 5,941.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,726.07 : 19,089.10 = 3,960.98 : x
  2. Step 2: Convert to fraction form
    12,726.07/19,089.10 = 3,960.98/x
  3. Step 3: Cross multiply
    12,726.07x = 19,089.10 × 3,960.98
  4. Step 4: Simplify right side
    12,726.07x = 75,611,437.97
  5. Step 5: Solve for x
    x = 75,611,437.97/12,726.07
  6. Step 6: Final answer
    x = 5,941.46

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Double scale
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Similar ratio
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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.