Home / 15,945.36-22,004.70-8,871.60

Finding the Fourth Proportional to 15,945.36, 22,004.70 and 8,871.60

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Solution

The fourth proportional to 15,945.36, 22,004.70 and 8,871.60 is: 12,242.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,945.36 : 22,004.70 = 8,871.60 : x
  2. Step 2: Convert to fraction form
    15,945.36/22,004.70 = 8,871.60/x
  3. Step 3: Cross multiply
    15,945.36x = 22,004.70 × 8,871.60
  4. Step 4: Simplify right side
    15,945.36x = 195,216,896.52
  5. Step 5: Solve for x
    x = 195,216,896.52/15,945.36
  6. Step 6: Final answer
    x = 12,242.87

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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.