Home / 13,070.28-18,048.94-8,362.82

Finding the Fourth Proportional to 13,070.28, 18,048.94 and 8,362.82

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Solution

The fourth proportional to 13,070.28, 18,048.94 and 8,362.82 is: 11,548.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,070.28 : 18,048.94 = 8,362.82 : x
  2. Step 2: Convert to fraction form
    13,070.28/18,048.94 = 8,362.82/x
  3. Step 3: Cross multiply
    13,070.28x = 18,048.94 × 8,362.82
  4. Step 4: Simplify right side
    13,070.28x = 150,940,036.41
  5. Step 5: Solve for x
    x = 150,940,036.41/13,070.28
  6. Step 6: Final answer
    x = 11,548.34

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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.