Home / 13,040.13-17,998.22-8,006.99

Finding the Fourth Proportional to 13,040.13, 17,998.22 and 8,006.99

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Solution

The fourth proportional to 13,040.13, 17,998.22 and 8,006.99 is: 11,051.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,040.13 : 17,998.22 = 8,006.99 : x
  2. Step 2: Convert to fraction form
    13,040.13/17,998.22 = 8,006.99/x
  3. Step 3: Cross multiply
    13,040.13x = 17,998.22 × 8,006.99
  4. Step 4: Simplify right side
    13,040.13x = 144,111,632.57
  5. Step 5: Solve for x
    x = 144,111,632.57/13,040.13
  6. Step 6: Final answer
    x = 11,051.40

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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.