Home / 13,568.24-18,724.16-7,518.89

Finding the Fourth Proportional to 13,568.24, 18,724.16 and 7,518.89

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Solution

The fourth proportional to 13,568.24, 18,724.16 and 7,518.89 is: 10,376.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,568.24 : 18,724.16 = 7,518.89 : x
  2. Step 2: Convert to fraction form
    13,568.24/18,724.16 = 7,518.89/x
  3. Step 3: Cross multiply
    13,568.24x = 18,724.16 × 7,518.89
  4. Step 4: Simplify right side
    13,568.24x = 140,784,964.99
  5. Step 5: Solve for x
    x = 140,784,964.99/13,568.24
  6. Step 6: Final answer
    x = 10,376.06

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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.