Home / 13,161.06-18,160.47-7,572.06

Finding the Fourth Proportional to 13,161.06, 18,160.47 and 7,572.06

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Solution

The fourth proportional to 13,161.06, 18,160.47 and 7,572.06 is: 10,448.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,161.06 : 18,160.47 = 7,572.06 : x
  2. Step 2: Convert to fraction form
    13,161.06/18,160.47 = 7,572.06/x
  3. Step 3: Cross multiply
    13,161.06x = 18,160.47 × 7,572.06
  4. Step 4: Simplify right side
    13,161.06x = 137,512,168.47
  5. Step 5: Solve for x
    x = 137,512,168.47/13,161.06
  6. Step 6: Final answer
    x = 10,448.41

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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.