Home / 13,525.57-18,638.70-10,342.47

Finding the Fourth Proportional to 13,525.57, 18,638.70 and 10,342.47

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Solution

The fourth proportional to 13,525.57, 18,638.70 and 10,342.47 is: 14,252.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,525.57 : 18,638.70 = 10,342.47 : x
  2. Step 2: Convert to fraction form
    13,525.57/18,638.70 = 10,342.47/x
  3. Step 3: Cross multiply
    13,525.57x = 18,638.70 × 10,342.47
  4. Step 4: Simplify right side
    13,525.57x = 192,770,195.59
  5. Step 5: Solve for x
    x = 192,770,195.59/13,525.57
  6. Step 6: Final answer
    x = 14,252.28

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1.5x scale

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.