Home / 15,714.36-21,686.40-9,425.52

Finding the Fourth Proportional to 15,714.36, 21,686.40 and 9,425.52

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Solution

The fourth proportional to 15,714.36, 21,686.40 and 9,425.52 is: 13,007.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,714.36 : 21,686.40 = 9,425.52 : x
  2. Step 2: Convert to fraction form
    15,714.36/21,686.40 = 9,425.52/x
  3. Step 3: Cross multiply
    15,714.36x = 21,686.40 × 9,425.52
  4. Step 4: Simplify right side
    15,714.36x = 204,405,596.93
  5. Step 5: Solve for x
    x = 204,405,596.93/15,714.36
  6. Step 6: Final answer
    x = 13,007.57

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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.