Home / 11,465.45-15,825.69-7,487.18

Finding the Fourth Proportional to 11,465.45, 15,825.69 and 7,487.18

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Solution

The fourth proportional to 11,465.45, 15,825.69 and 7,487.18 is: 10,334.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,465.45 : 15,825.69 = 7,487.18 : x
  2. Step 2: Convert to fraction form
    11,465.45/15,825.69 = 7,487.18/x
  3. Step 3: Cross multiply
    11,465.45x = 15,825.69 × 7,487.18
  4. Step 4: Simplify right side
    11,465.45x = 118,489,789.65
  5. Step 5: Solve for x
    x = 118,489,789.65/11,465.45
  6. Step 6: Final answer
    x = 10,334.51

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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.