Home / 13,663.55-18,855.32-7,695.27

Finding the Fourth Proportional to 13,663.55, 18,855.32 and 7,695.27

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Solution

The fourth proportional to 13,663.55, 18,855.32 and 7,695.27 is: 10,619.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,663.55 : 18,855.32 = 7,695.27 : x
  2. Step 2: Convert to fraction form
    13,663.55/18,855.32 = 7,695.27/x
  3. Step 3: Cross multiply
    13,663.55x = 18,855.32 × 7,695.27
  4. Step 4: Simplify right side
    13,663.55x = 145,096,739.86
  5. Step 5: Solve for x
    x = 145,096,739.86/13,663.55
  6. Step 6: Final answer
    x = 10,619.25

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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.