Home / 13,578.53-18,738.89-7,610.13

Finding the Fourth Proportional to 13,578.53, 18,738.89 and 7,610.13

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Solution

The fourth proportional to 13,578.53, 18,738.89 and 7,610.13 is: 10,502.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,578.53 : 18,738.89 = 7,610.13 : x
  2. Step 2: Convert to fraction form
    13,578.53/18,738.89 = 7,610.13/x
  3. Step 3: Cross multiply
    13,578.53x = 18,738.89 × 7,610.13
  4. Step 4: Simplify right side
    13,578.53x = 142,605,350.91
  5. Step 5: Solve for x
    x = 142,605,350.91/13,578.53
  6. Step 6: Final answer
    x = 10,502.27

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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.