Home / 15,775.27-21,769.77-8,701.54

Finding the Fourth Proportional to 15,775.27, 21,769.77 and 8,701.54

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Solution

The fourth proportional to 15,775.27, 21,769.77 and 8,701.54 is: 12,008.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,775.27 : 21,769.77 = 8,701.54 : x
  2. Step 2: Convert to fraction form
    15,775.27/21,769.77 = 8,701.54/x
  3. Step 3: Cross multiply
    15,775.27x = 21,769.77 × 8,701.54
  4. Step 4: Simplify right side
    15,775.27x = 189,430,524.45
  5. Step 5: Solve for x
    x = 189,430,524.45/15,775.27
  6. Step 6: Final answer
    x = 12,008.07

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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.