Home / 18,969.36-26,179.20-10,587.12

Finding the Fourth Proportional to 18,969.36, 26,179.20 and 10,587.12

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Solution

The fourth proportional to 18,969.36, 26,179.20 and 10,587.12 is: 14,611.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,969.36 : 26,179.20 = 10,587.12 : x
  2. Step 2: Convert to fraction form
    18,969.36/26,179.20 = 10,587.12/x
  3. Step 3: Cross multiply
    18,969.36x = 26,179.20 × 10,587.12
  4. Step 4: Simplify right side
    18,969.36x = 277,162,331.90
  5. Step 5: Solve for x
    x = 277,162,331.90/18,969.36
  6. Step 6: Final answer
    x = 14,611.05

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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.