Home / 13,583.10-18,744.74-7,921.77

Finding the Fourth Proportional to 13,583.10, 18,744.74 and 7,921.77

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Solution

The fourth proportional to 13,583.10, 18,744.74 and 7,921.77 is: 10,932.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,583.10 : 18,744.74 = 7,921.77 : x
  2. Step 2: Convert to fraction form
    13,583.10/18,744.74 = 7,921.77/x
  3. Step 3: Cross multiply
    13,583.10x = 18,744.74 × 7,921.77
  4. Step 4: Simplify right side
    13,583.10x = 148,491,479.38
  5. Step 5: Solve for x
    x = 148,491,479.38/13,583.10
  6. Step 6: Final answer
    x = 10,932.08

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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.