Home / 13,423.04-18,524.72-7,759.68

Finding the Fourth Proportional to 13,423.04, 18,524.72 and 7,759.68

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Solution

The fourth proportional to 13,423.04, 18,524.72 and 7,759.68 is: 10,708.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,423.04 : 18,524.72 = 7,759.68 : x
  2. Step 2: Convert to fraction form
    13,423.04/18,524.72 = 7,759.68/x
  3. Step 3: Cross multiply
    13,423.04x = 18,524.72 × 7,759.68
  4. Step 4: Simplify right side
    13,423.04x = 143,745,899.29
  5. Step 5: Solve for x
    x = 143,745,899.29/13,423.04
  6. Step 6: Final answer
    x = 10,708.89

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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.