Home / 15,540.37-21,445.95-8,466.79

Finding the Fourth Proportional to 15,540.37, 21,445.95 and 8,466.79

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Solution

The fourth proportional to 15,540.37, 21,445.95 and 8,466.79 is: 11,684.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,540.37 : 21,445.95 = 8,466.79 : x
  2. Step 2: Convert to fraction form
    15,540.37/21,445.95 = 8,466.79/x
  3. Step 3: Cross multiply
    15,540.37x = 21,445.95 × 8,466.79
  4. Step 4: Simplify right side
    15,540.37x = 181,578,355.00
  5. Step 5: Solve for x
    x = 181,578,355.00/15,540.37
  6. Step 6: Final answer
    x = 11,684.30

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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.