Home / 14,502.68-20,015.10-8,130.36

Finding the Fourth Proportional to 14,502.68, 20,015.10 and 8,130.36

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Solution

The fourth proportional to 14,502.68, 20,015.10 and 8,130.36 is: 11,220.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,502.68 : 20,015.10 = 8,130.36 : x
  2. Step 2: Convert to fraction form
    14,502.68/20,015.10 = 8,130.36/x
  3. Step 3: Cross multiply
    14,502.68x = 20,015.10 × 8,130.36
  4. Step 4: Simplify right side
    14,502.68x = 162,729,968.44
  5. Step 5: Solve for x
    x = 162,729,968.44/14,502.68
  6. Step 6: Final answer
    x = 11,220.68

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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.