Home / 13,679.37-18,877.27-7,710.93

Finding the Fourth Proportional to 13,679.37, 18,877.27 and 7,710.93

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Solution

The fourth proportional to 13,679.37, 18,877.27 and 7,710.93 is: 10,640.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,679.37 : 18,877.27 = 7,710.93 : x
  2. Step 2: Convert to fraction form
    13,679.37/18,877.27 = 7,710.93/x
  3. Step 3: Cross multiply
    13,679.37x = 18,877.27 × 7,710.93
  4. Step 4: Simplify right side
    13,679.37x = 145,561,174.62
  5. Step 5: Solve for x
    x = 145,561,174.62/13,679.37
  6. Step 6: Final answer
    x = 10,640.93

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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.