Home / 15,135.36-20,889.30-8,846.52

Finding the Fourth Proportional to 15,135.36, 20,889.30 and 8,846.52

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Solution

The fourth proportional to 15,135.36, 20,889.30 and 8,846.52 is: 12,209.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,135.36 : 20,889.30 = 8,846.52 : x
  2. Step 2: Convert to fraction form
    15,135.36/20,889.30 = 8,846.52/x
  3. Step 3: Cross multiply
    15,135.36x = 20,889.30 × 8,846.52
  4. Step 4: Simplify right side
    15,135.36x = 184,797,610.24
  5. Step 5: Solve for x
    x = 184,797,610.24/15,135.36
  6. Step 6: Final answer
    x = 12,209.66

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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.