Home / 13,561.16-18,713.84-7,896.06

Finding the Fourth Proportional to 13,561.16, 18,713.84 and 7,896.06

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Solution

The fourth proportional to 13,561.16, 18,713.84 and 7,896.06 is: 10,896.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,561.16 : 18,713.84 = 7,896.06 : x
  2. Step 2: Convert to fraction form
    13,561.16/18,713.84 = 7,896.06/x
  3. Step 3: Cross multiply
    13,561.16x = 18,713.84 × 7,896.06
  4. Step 4: Simplify right side
    13,561.16x = 147,765,603.47
  5. Step 5: Solve for x
    x = 147,765,603.47/13,561.16
  6. Step 6: Final answer
    x = 10,896.24

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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.