Home / 15,600.84-21,556.66-11,561.86

Finding the Fourth Proportional to 15,600.84, 21,556.66 and 11,561.86

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Solution

The fourth proportional to 15,600.84, 21,556.66 and 11,561.86 is: 15,975.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,600.84 : 21,556.66 = 11,561.86 : x
  2. Step 2: Convert to fraction form
    15,600.84/21,556.66 = 11,561.86/x
  3. Step 3: Cross multiply
    15,600.84x = 21,556.66 × 11,561.86
  4. Step 4: Simplify right side
    15,600.84x = 249,235,084.99
  5. Step 5: Solve for x
    x = 249,235,084.99/15,600.84
  6. Step 6: Final answer
    x = 15,975.75

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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.