Home / 12,724.60-17,568.60-7,946.41

Finding the Fourth Proportional to 12,724.60, 17,568.60 and 7,946.41

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Solution

The fourth proportional to 12,724.60, 17,568.60 and 7,946.41 is: 10,971.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,724.60 : 17,568.60 = 7,946.41 : x
  2. Step 2: Convert to fraction form
    12,724.60/17,568.60 = 7,946.41/x
  3. Step 3: Cross multiply
    12,724.60x = 17,568.60 × 7,946.41
  4. Step 4: Simplify right side
    12,724.60x = 139,607,298.73
  5. Step 5: Solve for x
    x = 139,607,298.73/12,724.60
  6. Step 6: Final answer
    x = 10,971.45

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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.