Home / 19,189.37-28,742.39-9,307.88

Finding the Fourth Proportional to 19,189.37, 28,742.39 and 9,307.88

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Solution

The fourth proportional to 19,189.37, 28,742.39 and 9,307.88 is: 13,941.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,189.37 : 28,742.39 = 9,307.88 : x
  2. Step 2: Convert to fraction form
    19,189.37/28,742.39 = 9,307.88/x
  3. Step 3: Cross multiply
    19,189.37x = 28,742.39 × 9,307.88
  4. Step 4: Simplify right side
    19,189.37x = 267,530,526.78
  5. Step 5: Solve for x
    x = 267,530,526.78/19,189.37
  6. Step 6: Final answer
    x = 13,941.60

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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.