Home / 13,566.21-18,719.46-7,896.57

Finding the Fourth Proportional to 13,566.21, 18,719.46 and 7,896.57

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Solution

The fourth proportional to 13,566.21, 18,719.46 and 7,896.57 is: 10,896.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,566.21 : 18,719.46 = 7,896.57 : x
  2. Step 2: Convert to fraction form
    13,566.21/18,719.46 = 7,896.57/x
  3. Step 3: Cross multiply
    13,566.21x = 18,719.46 × 7,896.57
  4. Step 4: Simplify right side
    13,566.21x = 147,819,526.25
  5. Step 5: Solve for x
    x = 147,819,526.25/13,566.21
  6. Step 6: Final answer
    x = 10,896.15

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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.