Home / 15,369.26-21,203.30-11,345.72

Finding the Fourth Proportional to 15,369.26, 21,203.30 and 11,345.72

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Solution

The fourth proportional to 15,369.26, 21,203.30 and 11,345.72 is: 15,652.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,369.26 : 21,203.30 = 11,345.72 : x
  2. Step 2: Convert to fraction form
    15,369.26/21,203.30 = 11,345.72/x
  3. Step 3: Cross multiply
    15,369.26x = 21,203.30 × 11,345.72
  4. Step 4: Simplify right side
    15,369.26x = 240,566,704.88
  5. Step 5: Solve for x
    x = 240,566,704.88/15,369.26
  6. Step 6: Final answer
    x = 15,652.46

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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.