Home / 13,292.27-19,938.48-3,430.87

Finding the Fourth Proportional to 13,292.27, 19,938.48 and 3,430.87

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Solution

The fourth proportional to 13,292.27, 19,938.48 and 3,430.87 is: 5,146.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,292.27 : 19,938.48 = 3,430.87 : x
  2. Step 2: Convert to fraction form
    13,292.27/19,938.48 = 3,430.87/x
  3. Step 3: Cross multiply
    13,292.27x = 19,938.48 × 3,430.87
  4. Step 4: Simplify right side
    13,292.27x = 68,406,315.72
  5. Step 5: Solve for x
    x = 68,406,315.72/13,292.27
  6. Step 6: Final answer
    x = 5,146.33

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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.