Home / 15,005.66-20,714.13-10,161.45

Finding the Fourth Proportional to 15,005.66, 20,714.13 and 10,161.45

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Solution

The fourth proportional to 15,005.66, 20,714.13 and 10,161.45 is: 14,027.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,005.66 : 20,714.13 = 10,161.45 : x
  2. Step 2: Convert to fraction form
    15,005.66/20,714.13 = 10,161.45/x
  3. Step 3: Cross multiply
    15,005.66x = 20,714.13 × 10,161.45
  4. Step 4: Simplify right side
    15,005.66x = 210,485,596.29
  5. Step 5: Solve for x
    x = 210,485,596.29/15,005.66
  6. Step 6: Final answer
    x = 14,027.08

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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.