Home / 9,823.75-13,556.78-5,407.75

Finding the Fourth Proportional to 9,823.75, 13,556.78 and 5,407.75

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Solution

The fourth proportional to 9,823.75, 13,556.78 and 5,407.75 is: 7,462.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,823.75 : 13,556.78 = 5,407.75 : x
  2. Step 2: Convert to fraction form
    9,823.75/13,556.78 = 5,407.75/x
  3. Step 3: Cross multiply
    9,823.75x = 13,556.78 × 5,407.75
  4. Step 4: Simplify right side
    9,823.75x = 73,311,650.01
  5. Step 5: Solve for x
    x = 73,311,650.01/9,823.75
  6. Step 6: Final answer
    x = 7,462.70

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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.