Home / 13,201.47-18,219.69-7,534.89

Finding the Fourth Proportional to 13,201.47, 18,219.69 and 7,534.89

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Solution

The fourth proportional to 13,201.47, 18,219.69 and 7,534.89 is: 10,399.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,201.47 : 18,219.69 = 7,534.89 : x
  2. Step 2: Convert to fraction form
    13,201.47/18,219.69 = 7,534.89/x
  3. Step 3: Cross multiply
    13,201.47x = 18,219.69 × 7,534.89
  4. Step 4: Simplify right side
    13,201.47x = 137,283,359.98
  5. Step 5: Solve for x
    x = 137,283,359.98/13,201.47
  6. Step 6: Final answer
    x = 10,399.10

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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.