Home / 13,380.93-18,464.76-7,412.04

Finding the Fourth Proportional to 13,380.93, 18,464.76 and 7,412.04

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Solution

The fourth proportional to 13,380.93, 18,464.76 and 7,412.04 is: 10,228.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,380.93 : 18,464.76 = 7,412.04 : x
  2. Step 2: Convert to fraction form
    13,380.93/18,464.76 = 7,412.04/x
  3. Step 3: Cross multiply
    13,380.93x = 18,464.76 × 7,412.04
  4. Step 4: Simplify right side
    13,380.93x = 136,861,539.71
  5. Step 5: Solve for x
    x = 136,861,539.71/13,380.93
  6. Step 6: Final answer
    x = 10,228.10

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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.