Home / 9,189.55-13,778.40-3,927.99

Finding the Fourth Proportional to 9,189.55, 13,778.40 and 3,927.99

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Solution

The fourth proportional to 9,189.55, 13,778.40 and 3,927.99 is: 5,889.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,189.55 : 13,778.40 = 3,927.99 : x
  2. Step 2: Convert to fraction form
    9,189.55/13,778.40 = 3,927.99/x
  3. Step 3: Cross multiply
    9,189.55x = 13,778.40 × 3,927.99
  4. Step 4: Simplify right side
    9,189.55x = 54,121,483.81
  5. Step 5: Solve for x
    x = 54,121,483.81/9,189.55
  6. Step 6: Final answer
    x = 5,889.46

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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.