Home / 13,190.90-18,203.10-7,525.22

Finding the Fourth Proportional to 13,190.90, 18,203.10 and 7,525.22

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Solution

The fourth proportional to 13,190.90, 18,203.10 and 7,525.22 is: 10,384.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,190.90 : 18,203.10 = 7,525.22 : x
  2. Step 2: Convert to fraction form
    13,190.90/18,203.10 = 7,525.22/x
  3. Step 3: Cross multiply
    13,190.90x = 18,203.10 × 7,525.22
  4. Step 4: Simplify right side
    13,190.90x = 136,982,332.18
  5. Step 5: Solve for x
    x = 136,982,332.18/13,190.90
  6. Step 6: Final answer
    x = 10,384.61

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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.