Home / 14,502.51-20,011.70-8,127.64

Finding the Fourth Proportional to 14,502.51, 20,011.70 and 8,127.64

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Solution

The fourth proportional to 14,502.51, 20,011.70 and 8,127.64 is: 11,215.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,502.51 : 20,011.70 = 8,127.64 : x
  2. Step 2: Convert to fraction form
    14,502.51/20,011.70 = 8,127.64/x
  3. Step 3: Cross multiply
    14,502.51x = 20,011.70 × 8,127.64
  4. Step 4: Simplify right side
    14,502.51x = 162,647,793.33
  5. Step 5: Solve for x
    x = 162,647,793.33/14,502.51
  6. Step 6: Final answer
    x = 11,215.15

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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.