Home / 15,235.56-21,004.92-10,983.06

Finding the Fourth Proportional to 15,235.56, 21,004.92 and 10,983.06

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Solution

The fourth proportional to 15,235.56, 21,004.92 and 10,983.06 is: 15,142.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,235.56 : 21,004.92 = 10,983.06 : x
  2. Step 2: Convert to fraction form
    15,235.56/21,004.92 = 10,983.06/x
  3. Step 3: Cross multiply
    15,235.56x = 21,004.92 × 10,983.06
  4. Step 4: Simplify right side
    15,235.56x = 230,698,296.66
  5. Step 5: Solve for x
    x = 230,698,296.66/15,235.56
  6. Step 6: Final answer
    x = 15,142.09

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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.