Home / 15,339.07-22,989.77-7,939.31

Finding the Fourth Proportional to 15,339.07, 22,989.77 and 7,939.31

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Solution

The fourth proportional to 15,339.07, 22,989.77 and 7,939.31 is: 11,899.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,339.07 : 22,989.77 = 7,939.31 : x
  2. Step 2: Convert to fraction form
    15,339.07/22,989.77 = 7,939.31/x
  3. Step 3: Cross multiply
    15,339.07x = 22,989.77 × 7,939.31
  4. Step 4: Simplify right side
    15,339.07x = 182,522,871.16
  5. Step 5: Solve for x
    x = 182,522,871.16/15,339.07
  6. Step 6: Final answer
    x = 11,899.22

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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.