Home / 13,265.08-18,303.78-7,675

Finding the Fourth Proportional to 13,265.08, 18,303.78 and 7,675

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Solution

The fourth proportional to 13,265.08, 18,303.78 and 7,675 is: 10,590.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,265.08 : 18,303.78 = 7,675 : x
  2. Step 2: Convert to fraction form
    13,265.08/18,303.78 = 7,675/x
  3. Step 3: Cross multiply
    13,265.08x = 18,303.78 × 7,675
  4. Step 4: Simplify right side
    13,265.08x = 140,481,511.50
  5. Step 5: Solve for x
    x = 140,481,511.50/13,265.08
  6. Step 6: Final answer
    x = 10,590.33

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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.