Home / 13,378.41-18,462.36-7,410.20

Finding the Fourth Proportional to 13,378.41, 18,462.36 and 7,410.20

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Solution

The fourth proportional to 13,378.41, 18,462.36 and 7,410.20 is: 10,226.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,378.41 : 18,462.36 = 7,410.20 : x
  2. Step 2: Convert to fraction form
    13,378.41/18,462.36 = 7,410.20/x
  3. Step 3: Cross multiply
    13,378.41x = 18,462.36 × 7,410.20
  4. Step 4: Simplify right side
    13,378.41x = 136,809,687.76
  5. Step 5: Solve for x
    x = 136,809,687.76/13,378.41
  6. Step 6: Final answer
    x = 10,226.15

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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.