Home / 13,030.26-17,981.74-7,061.96

Finding the Fourth Proportional to 13,030.26, 17,981.74 and 7,061.96

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Solution

The fourth proportional to 13,030.26, 17,981.74 and 7,061.96 is: 9,745.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,030.26 : 17,981.74 = 7,061.96 : x
  2. Step 2: Convert to fraction form
    13,030.26/17,981.74 = 7,061.96/x
  3. Step 3: Cross multiply
    13,030.26x = 17,981.74 × 7,061.96
  4. Step 4: Simplify right side
    13,030.26x = 126,986,328.61
  5. Step 5: Solve for x
    x = 126,986,328.61/13,030.26
  6. Step 6: Final answer
    x = 9,745.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.