Home / 13,268.91-18,311.16-7,300.68

Finding the Fourth Proportional to 13,268.91, 18,311.16 and 7,300.68

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Solution

The fourth proportional to 13,268.91, 18,311.16 and 7,300.68 is: 10,074.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268.91 : 18,311.16 = 7,300.68 : x
  2. Step 2: Convert to fraction form
    13,268.91/18,311.16 = 7,300.68/x
  3. Step 3: Cross multiply
    13,268.91x = 18,311.16 × 7,300.68
  4. Step 4: Simplify right side
    13,268.91x = 133,683,981.30
  5. Step 5: Solve for x
    x = 133,683,981.30/13,268.91
  6. Step 6: Final answer
    x = 10,074.98

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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.