Home / 13,289.42-19,934.60-7,040.99

Finding the Fourth Proportional to 13,289.42, 19,934.60 and 7,040.99

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Solution

The fourth proportional to 13,289.42, 19,934.60 and 7,040.99 is: 10,561.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,289.42 : 19,934.60 = 7,040.99 : x
  2. Step 2: Convert to fraction form
    13,289.42/19,934.60 = 7,040.99/x
  3. Step 3: Cross multiply
    13,289.42x = 19,934.60 × 7,040.99
  4. Step 4: Simplify right side
    13,289.42x = 140,359,184.38
  5. Step 5: Solve for x
    x = 140,359,184.38/13,289.42
  6. Step 6: Final answer
    x = 10,561.73

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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.