Home / 14,901.24-20,556-10,121.43

Finding the Fourth Proportional to 14,901.24, 20,556 and 10,121.43

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Solution

The fourth proportional to 14,901.24, 20,556 and 10,121.43 is: 13,962.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,901.24 : 20,556 = 10,121.43 : x
  2. Step 2: Convert to fraction form
    14,901.24/20,556 = 10,121.43/x
  3. Step 3: Cross multiply
    14,901.24x = 20,556 × 10,121.43
  4. Step 4: Simplify right side
    14,901.24x = 208,056,115.08
  5. Step 5: Solve for x
    x = 208,056,115.08/14,901.24
  6. Step 6: Final answer
    x = 13,962.34

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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.