Home / 13,739.84-18,960.90-7,452.08

Finding the Fourth Proportional to 13,739.84, 18,960.90 and 7,452.08

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Solution

The fourth proportional to 13,739.84, 18,960.90 and 7,452.08 is: 10,283.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,739.84 : 18,960.90 = 7,452.08 : x
  2. Step 2: Convert to fraction form
    13,739.84/18,960.90 = 7,452.08/x
  3. Step 3: Cross multiply
    13,739.84x = 18,960.90 × 7,452.08
  4. Step 4: Simplify right side
    13,739.84x = 141,298,143.67
  5. Step 5: Solve for x
    x = 141,298,143.67/13,739.84
  6. Step 6: Final answer
    x = 10,283.83

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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.