Home / 14,579.36-20,121.72-10,618.48

Finding the Fourth Proportional to 14,579.36, 20,121.72 and 10,618.48

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Solution

The fourth proportional to 14,579.36, 20,121.72 and 10,618.48 is: 14,655.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,579.36 : 20,121.72 = 10,618.48 : x
  2. Step 2: Convert to fraction form
    14,579.36/20,121.72 = 10,618.48/x
  3. Step 3: Cross multiply
    14,579.36x = 20,121.72 × 10,618.48
  4. Step 4: Simplify right side
    14,579.36x = 213,662,081.39
  5. Step 5: Solve for x
    x = 213,662,081.39/14,579.36
  6. Step 6: Final answer
    x = 14,655.11

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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.