Home / 13,273.47-18,307.62-11,591.30

Finding the Fourth Proportional to 13,273.47, 18,307.62 and 11,591.30

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Solution

The fourth proportional to 13,273.47, 18,307.62 and 11,591.30 is: 15,987.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,273.47 : 18,307.62 = 11,591.30 : x
  2. Step 2: Convert to fraction form
    13,273.47/18,307.62 = 11,591.30/x
  3. Step 3: Cross multiply
    13,273.47x = 18,307.62 × 11,591.30
  4. Step 4: Simplify right side
    13,273.47x = 212,209,161.48
  5. Step 5: Solve for x
    x = 212,209,161.48/13,273.47
  6. Step 6: Final answer
    x = 15,987.47

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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.