Home / 15,108.06-20,846.88-8,393.79

Finding the Fourth Proportional to 15,108.06, 20,846.88 and 8,393.79

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Solution

The fourth proportional to 15,108.06, 20,846.88 and 8,393.79 is: 11,582.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,108.06 : 20,846.88 = 8,393.79 : x
  2. Step 2: Convert to fraction form
    15,108.06/20,846.88 = 8,393.79/x
  3. Step 3: Cross multiply
    15,108.06x = 20,846.88 × 8,393.79
  4. Step 4: Simplify right side
    15,108.06x = 174,984,332.88
  5. Step 5: Solve for x
    x = 174,984,332.88/15,108.06
  6. Step 6: Final answer
    x = 11,582.18

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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.