Home / 13,062.48-18,028.44-7,760.16

Finding the Fourth Proportional to 13,062.48, 18,028.44 and 7,760.16

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Solution

The fourth proportional to 13,062.48, 18,028.44 and 7,760.16 is: 10,710.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,062.48 : 18,028.44 = 7,760.16 : x
  2. Step 2: Convert to fraction form
    13,062.48/18,028.44 = 7,760.16/x
  3. Step 3: Cross multiply
    13,062.48x = 18,028.44 × 7,760.16
  4. Step 4: Simplify right side
    13,062.48x = 139,903,578.95
  5. Step 5: Solve for x
    x = 139,903,578.95/13,062.48
  6. Step 6: Final answer
    x = 10,710.34

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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.