Home / 14,777.39-20,400.26-9,405.27

Finding the Fourth Proportional to 14,777.39, 20,400.26 and 9,405.27

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Solution

The fourth proportional to 14,777.39, 20,400.26 and 9,405.27 is: 12,984.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,777.39 : 20,400.26 = 9,405.27 : x
  2. Step 2: Convert to fraction form
    14,777.39/20,400.26 = 9,405.27/x
  3. Step 3: Cross multiply
    14,777.39x = 20,400.26 × 9,405.27
  4. Step 4: Simplify right side
    14,777.39x = 191,869,906.34
  5. Step 5: Solve for x
    x = 191,869,906.34/14,777.39
  6. Step 6: Final answer
    x = 12,984.02

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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.