Home / 13,188.48-18,201.57-7,524.63

Finding the Fourth Proportional to 13,188.48, 18,201.57 and 7,524.63

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Solution

The fourth proportional to 13,188.48, 18,201.57 and 7,524.63 is: 10,384.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,188.48 : 18,201.57 = 7,524.63 : x
  2. Step 2: Convert to fraction form
    13,188.48/18,201.57 = 7,524.63/x
  3. Step 3: Cross multiply
    13,188.48x = 18,201.57 × 7,524.63
  4. Step 4: Simplify right side
    13,188.48x = 136,959,983.20
  5. Step 5: Solve for x
    x = 136,959,983.20/13,188.48
  6. Step 6: Final answer
    x = 10,384.82

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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.