Home / 13,624.12-18,801.62-7,655.43

Finding the Fourth Proportional to 13,624.12, 18,801.62 and 7,655.43

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Solution

The fourth proportional to 13,624.12, 18,801.62 and 7,655.43 is: 10,564.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,624.12 : 18,801.62 = 7,655.43 : x
  2. Step 2: Convert to fraction form
    13,624.12/18,801.62 = 7,655.43/x
  3. Step 3: Cross multiply
    13,624.12x = 18,801.62 × 7,655.43
  4. Step 4: Simplify right side
    13,624.12x = 143,934,485.80
  5. Step 5: Solve for x
    x = 143,934,485.80/13,624.12
  6. Step 6: Final answer
    x = 10,564.68

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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.