Home / 15,708.06-23,531.31-9,120.42

Finding the Fourth Proportional to 15,708.06, 23,531.31 and 9,120.42

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Solution

The fourth proportional to 15,708.06, 23,531.31 and 9,120.42 is: 13,662.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,708.06 : 23,531.31 = 9,120.42 : x
  2. Step 2: Convert to fraction form
    15,708.06/23,531.31 = 9,120.42/x
  3. Step 3: Cross multiply
    15,708.06x = 23,531.31 × 9,120.42
  4. Step 4: Simplify right side
    15,708.06x = 214,615,430.35
  5. Step 5: Solve for x
    x = 214,615,430.35/15,708.06
  6. Step 6: Final answer
    x = 13,662.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.