Home / 13,142.44-18,133.86-7,552.36

Finding the Fourth Proportional to 13,142.44, 18,133.86 and 7,552.36

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Solution

The fourth proportional to 13,142.44, 18,133.86 and 7,552.36 is: 10,420.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,142.44 : 18,133.86 = 7,552.36 : x
  2. Step 2: Convert to fraction form
    13,142.44/18,133.86 = 7,552.36/x
  3. Step 3: Cross multiply
    13,142.44x = 18,133.86 × 7,552.36
  4. Step 4: Simplify right side
    13,142.44x = 136,953,438.91
  5. Step 5: Solve for x
    x = 136,953,438.91/13,142.44
  6. Step 6: Final answer
    x = 10,420.70

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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.