Home / 13,567.70-18,715.62-9,786.62

Finding the Fourth Proportional to 13,567.70, 18,715.62 and 9,786.62

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Solution

The fourth proportional to 13,567.70, 18,715.62 and 9,786.62 is: 13,499.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,567.70 : 18,715.62 = 9,786.62 : x
  2. Step 2: Convert to fraction form
    13,567.70/18,715.62 = 9,786.62/x
  3. Step 3: Cross multiply
    13,567.70x = 18,715.62 × 9,786.62
  4. Step 4: Simplify right side
    13,567.70x = 183,162,661.00
  5. Step 5: Solve for x
    x = 183,162,661.00/13,567.70
  6. Step 6: Final answer
    x = 13,499.90

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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.