Home / 13,935.13-19,224.19-8,270.11

Finding the Fourth Proportional to 13,935.13, 19,224.19 and 8,270.11

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Solution

The fourth proportional to 13,935.13, 19,224.19 and 8,270.11 is: 11,409.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,935.13 : 19,224.19 = 8,270.11 : x
  2. Step 2: Convert to fraction form
    13,935.13/19,224.19 = 8,270.11/x
  3. Step 3: Cross multiply
    13,935.13x = 19,224.19 × 8,270.11
  4. Step 4: Simplify right side
    13,935.13x = 158,986,165.96
  5. Step 5: Solve for x
    x = 158,986,165.96/13,935.13
  6. Step 6: Final answer
    x = 11,409.02

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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.