Home / 13,621.92-18,796.14-7,652.45

Finding the Fourth Proportional to 13,621.92, 18,796.14 and 7,652.45

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Solution

The fourth proportional to 13,621.92, 18,796.14 and 7,652.45 is: 10,559.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621.92 : 18,796.14 = 7,652.45 : x
  2. Step 2: Convert to fraction form
    13,621.92/18,796.14 = 7,652.45/x
  3. Step 3: Cross multiply
    13,621.92x = 18,796.14 × 7,652.45
  4. Step 4: Simplify right side
    13,621.92x = 143,836,427.56
  5. Step 5: Solve for x
    x = 143,836,427.56/13,621.92
  6. Step 6: Final answer
    x = 10,559.19

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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.