Home / 12,712.41-19,071.59-3,946.86

Finding the Fourth Proportional to 12,712.41, 19,071.59 and 3,946.86

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Solution

The fourth proportional to 12,712.41, 19,071.59 and 3,946.86 is: 5,921.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,712.41 : 19,071.59 = 3,946.86 : x
  2. Step 2: Convert to fraction form
    12,712.41/19,071.59 = 3,946.86/x
  3. Step 3: Cross multiply
    12,712.41x = 19,071.59 × 3,946.86
  4. Step 4: Simplify right side
    12,712.41x = 75,272,875.97
  5. Step 5: Solve for x
    x = 75,272,875.97/12,712.41
  6. Step 6: Final answer
    x = 5,921.21

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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.