Home / 13,173.88-18,180.72-7,510.36

Finding the Fourth Proportional to 13,173.88, 18,180.72 and 7,510.36

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Solution

The fourth proportional to 13,173.88, 18,180.72 and 7,510.36 is: 10,364.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,173.88 : 18,180.72 = 7,510.36 : x
  2. Step 2: Convert to fraction form
    13,173.88/18,180.72 = 7,510.36/x
  3. Step 3: Cross multiply
    13,173.88x = 18,180.72 × 7,510.36
  4. Step 4: Simplify right side
    13,173.88x = 136,543,752.26
  5. Step 5: Solve for x
    x = 136,543,752.26/13,173.88
  6. Step 6: Final answer
    x = 10,364.73

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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.