Home / 13,448.19-20,122.52-8,114.46

Finding the Fourth Proportional to 13,448.19, 20,122.52 and 8,114.46

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Solution

The fourth proportional to 13,448.19, 20,122.52 and 8,114.46 is: 12,141.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,448.19 : 20,122.52 = 8,114.46 : x
  2. Step 2: Convert to fraction form
    13,448.19/20,122.52 = 8,114.46/x
  3. Step 3: Cross multiply
    13,448.19x = 20,122.52 × 8,114.46
  4. Step 4: Simplify right side
    13,448.19x = 163,283,242.45
  5. Step 5: Solve for x
    x = 163,283,242.45/13,448.19
  6. Step 6: Final answer
    x = 12,141.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.