Home / 15,976.72-22,047.08-8,903.76

Finding the Fourth Proportional to 15,976.72, 22,047.08 and 8,903.76

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Solution

The fourth proportional to 15,976.72, 22,047.08 and 8,903.76 is: 12,286.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,976.72 : 22,047.08 = 8,903.76 : x
  2. Step 2: Convert to fraction form
    15,976.72/22,047.08 = 8,903.76/x
  3. Step 3: Cross multiply
    15,976.72x = 22,047.08 × 8,903.76
  4. Step 4: Simplify right side
    15,976.72x = 196,301,909.02
  5. Step 5: Solve for x
    x = 196,301,909.02/15,976.72
  6. Step 6: Final answer
    x = 12,286.75

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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.