Home / 15,913.37-21,957.77-8,839.64

Finding the Fourth Proportional to 15,913.37, 21,957.77 and 8,839.64

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Solution

The fourth proportional to 15,913.37, 21,957.77 and 8,839.64 is: 12,197.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,913.37 : 21,957.77 = 8,839.64 : x
  2. Step 2: Convert to fraction form
    15,913.37/21,957.77 = 8,839.64/x
  3. Step 3: Cross multiply
    15,913.37x = 21,957.77 × 8,839.64
  4. Step 4: Simplify right side
    15,913.37x = 194,098,628.02
  5. Step 5: Solve for x
    x = 194,098,628.02/15,913.37
  6. Step 6: Final answer
    x = 12,197.21

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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.