Home / 15,541.37-21,447-8,467.77

Finding the Fourth Proportional to 15,541.37, 21,447 and 8,467.77

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Solution

The fourth proportional to 15,541.37, 21,447 and 8,467.77 is: 11,685.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,541.37 : 21,447 = 8,467.77 : x
  2. Step 2: Convert to fraction form
    15,541.37/21,447 = 8,467.77/x
  3. Step 3: Cross multiply
    15,541.37x = 21,447 × 8,467.77
  4. Step 4: Simplify right side
    15,541.37x = 181,608,263.19
  5. Step 5: Solve for x
    x = 181,608,263.19/15,541.37
  6. Step 6: Final answer
    x = 11,685.48

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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.