Home / 13,161.26-19,572.62-12,745.98

Finding the Fourth Proportional to 13,161.26, 19,572.62 and 12,745.98

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Solution

The fourth proportional to 13,161.26, 19,572.62 and 12,745.98 is: 18,955.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,161.26 : 19,572.62 = 12,745.98 : x
  2. Step 2: Convert to fraction form
    13,161.26/19,572.62 = 12,745.98/x
  3. Step 3: Cross multiply
    13,161.26x = 19,572.62 × 12,745.98
  4. Step 4: Simplify right side
    13,161.26x = 249,472,159.34
  5. Step 5: Solve for x
    x = 249,472,159.34/13,161.26
  6. Step 6: Final answer
    x = 18,955.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.