Home / 15,314.82-21,133.24-8,601.45

Finding the Fourth Proportional to 15,314.82, 21,133.24 and 8,601.45

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Solution

The fourth proportional to 15,314.82, 21,133.24 and 8,601.45 is: 11,869.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,314.82 : 21,133.24 = 8,601.45 : x
  2. Step 2: Convert to fraction form
    15,314.82/21,133.24 = 8,601.45/x
  3. Step 3: Cross multiply
    15,314.82x = 21,133.24 × 8,601.45
  4. Step 4: Simplify right side
    15,314.82x = 181,776,507.20
  5. Step 5: Solve for x
    x = 181,776,507.20/15,314.82
  6. Step 6: Final answer
    x = 11,869.32

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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.