Home / 13,050.78-18,013.96-10,397.22

Finding the Fourth Proportional to 13,050.78, 18,013.96 and 10,397.22

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Solution

The fourth proportional to 13,050.78, 18,013.96 and 10,397.22 is: 14,351.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,050.78 : 18,013.96 = 10,397.22 : x
  2. Step 2: Convert to fraction form
    13,050.78/18,013.96 = 10,397.22/x
  3. Step 3: Cross multiply
    13,050.78x = 18,013.96 × 10,397.22
  4. Step 4: Simplify right side
    13,050.78x = 187,295,105.19
  5. Step 5: Solve for x
    x = 187,295,105.19/13,050.78
  6. Step 6: Final answer
    x = 14,351.26

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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.