Home / 13,583.07-18,744.69-7,921.74

Finding the Fourth Proportional to 13,583.07, 18,744.69 and 7,921.74

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Solution

The fourth proportional to 13,583.07, 18,744.69 and 7,921.74 is: 10,932.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,583.07 : 18,744.69 = 7,921.74 : x
  2. Step 2: Convert to fraction form
    13,583.07/18,744.69 = 7,921.74/x
  3. Step 3: Cross multiply
    13,583.07x = 18,744.69 × 7,921.74
  4. Step 4: Simplify right side
    13,583.07x = 148,490,560.56
  5. Step 5: Solve for x
    x = 148,490,560.56/13,583.07
  6. Step 6: Final answer
    x = 10,932.03

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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.