Home / 14,505.21-20,016.72-8,536.79

Finding the Fourth Proportional to 14,505.21, 20,016.72 and 8,536.79

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Solution

The fourth proportional to 14,505.21, 20,016.72 and 8,536.79 is: 11,780.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,505.21 : 20,016.72 = 8,536.79 : x
  2. Step 2: Convert to fraction form
    14,505.21/20,016.72 = 8,536.79/x
  3. Step 3: Cross multiply
    14,505.21x = 20,016.72 × 8,536.79
  4. Step 4: Simplify right side
    14,505.21x = 170,878,585.17
  5. Step 5: Solve for x
    x = 170,878,585.17/14,505.21
  6. Step 6: Final answer
    x = 11,780.50

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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.