Home / 15,484.15-21,367.49-8,769.86

Finding the Fourth Proportional to 15,484.15, 21,367.49 and 8,769.86

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Solution

The fourth proportional to 15,484.15, 21,367.49 and 8,769.86 is: 12,102.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,484.15 : 21,367.49 = 8,769.86 : x
  2. Step 2: Convert to fraction form
    15,484.15/21,367.49 = 8,769.86/x
  3. Step 3: Cross multiply
    15,484.15x = 21,367.49 × 8,769.86
  4. Step 4: Simplify right side
    15,484.15x = 187,389,895.85
  5. Step 5: Solve for x
    x = 187,389,895.85/15,484.15
  6. Step 6: Final answer
    x = 12,102.05

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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.