Home / 13,410.77-18,506.21-7,360.86

Finding the Fourth Proportional to 13,410.77, 18,506.21 and 7,360.86

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Solution

The fourth proportional to 13,410.77, 18,506.21 and 7,360.86 is: 10,157.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,410.77 : 18,506.21 = 7,360.86 : x
  2. Step 2: Convert to fraction form
    13,410.77/18,506.21 = 7,360.86/x
  3. Step 3: Cross multiply
    13,410.77x = 18,506.21 × 7,360.86
  4. Step 4: Simplify right side
    13,410.77x = 136,221,620.94
  5. Step 5: Solve for x
    x = 136,221,620.94/13,410.77
  6. Step 6: Final answer
    x = 10,157.63

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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.