Home / 13,663.48-18,855.67-7,695.25

Finding the Fourth Proportional to 13,663.48, 18,855.67 and 7,695.25

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Solution

The fourth proportional to 13,663.48, 18,855.67 and 7,695.25 is: 10,619.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,663.48 : 18,855.67 = 7,695.25 : x
  2. Step 2: Convert to fraction form
    13,663.48/18,855.67 = 7,695.25/x
  3. Step 3: Cross multiply
    13,663.48x = 18,855.67 × 7,695.25
  4. Step 4: Simplify right side
    13,663.48x = 145,099,056.09
  5. Step 5: Solve for x
    x = 145,099,056.09/13,663.48
  6. Step 6: Final answer
    x = 10,619.48

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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.