Home / 13,380.03-18,464.45-8,341.25

Finding the Fourth Proportional to 13,380.03, 18,464.45 and 8,341.25

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Solution

The fourth proportional to 13,380.03, 18,464.45 and 8,341.25 is: 11,510.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,380.03 : 18,464.45 = 8,341.25 : x
  2. Step 2: Convert to fraction form
    13,380.03/18,464.45 = 8,341.25/x
  3. Step 3: Cross multiply
    13,380.03x = 18,464.45 × 8,341.25
  4. Step 4: Simplify right side
    13,380.03x = 154,016,459.53
  5. Step 5: Solve for x
    x = 154,016,459.53/13,380.03
  6. Step 6: Final answer
    x = 11,510.92

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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.