Home / 13,190.18-18,201.50-7,525.16

Finding the Fourth Proportional to 13,190.18, 18,201.50 and 7,525.16

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Solution

The fourth proportional to 13,190.18, 18,201.50 and 7,525.16 is: 10,384.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,190.18 : 18,201.50 = 7,525.16 : x
  2. Step 2: Convert to fraction form
    13,190.18/18,201.50 = 7,525.16/x
  3. Step 3: Cross multiply
    13,190.18x = 18,201.50 × 7,525.16
  4. Step 4: Simplify right side
    13,190.18x = 136,969,199.74
  5. Step 5: Solve for x
    x = 136,969,199.74/13,190.18
  6. Step 6: Final answer
    x = 10,384.18

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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.