Home / 12,526.74-18,777.60-8,081.64

Finding the Fourth Proportional to 12,526.74, 18,777.60 and 8,081.64

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Solution

The fourth proportional to 12,526.74, 18,777.60 and 8,081.64 is: 12,114.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,526.74 : 18,777.60 = 8,081.64 : x
  2. Step 2: Convert to fraction form
    12,526.74/18,777.60 = 8,081.64/x
  3. Step 3: Cross multiply
    12,526.74x = 18,777.60 × 8,081.64
  4. Step 4: Simplify right side
    12,526.74x = 151,753,803.26
  5. Step 5: Solve for x
    x = 151,753,803.26/12,526.74
  6. Step 6: Final answer
    x = 12,114.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.