Home / 13,181.82-18,210.68-8,655.24

Finding the Fourth Proportional to 13,181.82, 18,210.68 and 8,655.24

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Solution

The fourth proportional to 13,181.82, 18,210.68 and 8,655.24 is: 11,957.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,181.82 : 18,210.68 = 8,655.24 : x
  2. Step 2: Convert to fraction form
    13,181.82/18,210.68 = 8,655.24/x
  3. Step 3: Cross multiply
    13,181.82x = 18,210.68 × 8,655.24
  4. Step 4: Simplify right side
    13,181.82x = 157,617,762.69
  5. Step 5: Solve for x
    x = 157,617,762.69/13,181.82
  6. Step 6: Final answer
    x = 11,957.21

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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.