Home / 15,769.24-21,760.74-8,695.48

Finding the Fourth Proportional to 15,769.24, 21,760.74 and 8,695.48

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Solution

The fourth proportional to 15,769.24, 21,760.74 and 8,695.48 is: 11,999.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,769.24 : 21,760.74 = 8,695.48 : x
  2. Step 2: Convert to fraction form
    15,769.24/21,760.74 = 8,695.48/x
  3. Step 3: Cross multiply
    15,769.24x = 21,760.74 × 8,695.48
  4. Step 4: Simplify right side
    15,769.24x = 189,220,079.46
  5. Step 5: Solve for x
    x = 189,220,079.46/15,769.24
  6. Step 6: Final answer
    x = 11,999.32

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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.