Home / 18,625.19-25,683.48-12,966.39

Finding the Fourth Proportional to 18,625.19, 25,683.48 and 12,966.39

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Solution

The fourth proportional to 18,625.19, 25,683.48 and 12,966.39 is: 17,880.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,625.19 : 25,683.48 = 12,966.39 : x
  2. Step 2: Convert to fraction form
    18,625.19/25,683.48 = 12,966.39/x
  3. Step 3: Cross multiply
    18,625.19x = 25,683.48 × 12,966.39
  4. Step 4: Simplify right side
    18,625.19x = 333,022,018.24
  5. Step 5: Solve for x
    x = 333,022,018.24/18,625.19
  6. Step 6: Final answer
    x = 17,880.20

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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.