Home / 13,407.04-18,502.21-8,100.83

Finding the Fourth Proportional to 13,407.04, 18,502.21 and 8,100.83

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Solution

The fourth proportional to 13,407.04, 18,502.21 and 8,100.83 is: 11,179.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,407.04 : 18,502.21 = 8,100.83 : x
  2. Step 2: Convert to fraction form
    13,407.04/18,502.21 = 8,100.83/x
  3. Step 3: Cross multiply
    13,407.04x = 18,502.21 × 8,100.83
  4. Step 4: Simplify right side
    13,407.04x = 149,883,314.22
  5. Step 5: Solve for x
    x = 149,883,314.22/13,407.04
  6. Step 6: Final answer
    x = 11,179.45

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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.