Home / 13,186.48-18,197.92-7,521.84

Finding the Fourth Proportional to 13,186.48, 18,197.92 and 7,521.84

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Solution

The fourth proportional to 13,186.48, 18,197.92 and 7,521.84 is: 10,380.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,186.48 : 18,197.92 = 7,521.84 : x
  2. Step 2: Convert to fraction form
    13,186.48/18,197.92 = 7,521.84/x
  3. Step 3: Cross multiply
    13,186.48x = 18,197.92 × 7,521.84
  4. Step 4: Simplify right side
    13,186.48x = 136,881,842.57
  5. Step 5: Solve for x
    x = 136,881,842.57/13,186.48
  6. Step 6: Final answer
    x = 10,380.47

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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.