Home / 13,777.41-20,669.40-4,289.25

Finding the Fourth Proportional to 13,777.41, 20,669.40 and 4,289.25

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Solution

The fourth proportional to 13,777.41, 20,669.40 and 4,289.25 is: 6,434.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,777.41 : 20,669.40 = 4,289.25 : x
  2. Step 2: Convert to fraction form
    13,777.41/20,669.40 = 4,289.25/x
  3. Step 3: Cross multiply
    13,777.41x = 20,669.40 × 4,289.25
  4. Step 4: Simplify right side
    13,777.41x = 88,656,223.95
  5. Step 5: Solve for x
    x = 88,656,223.95/13,777.41
  6. Step 6: Final answer
    x = 6,434.90

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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.