Home / 12,949.56-17,880.44-10,112.01

Finding the Fourth Proportional to 12,949.56, 17,880.44 and 10,112.01

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Solution

The fourth proportional to 12,949.56, 17,880.44 and 10,112.01 is: 13,962.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,949.56 : 17,880.44 = 10,112.01 : x
  2. Step 2: Convert to fraction form
    12,949.56/17,880.44 = 10,112.01/x
  3. Step 3: Cross multiply
    12,949.56x = 17,880.44 × 10,112.01
  4. Step 4: Simplify right side
    12,949.56x = 180,807,188.08
  5. Step 5: Solve for x
    x = 180,807,188.08/12,949.56
  6. Step 6: Final answer
    x = 13,962.42

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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.