Home / 15,733.56-21,719.16-11,957.40

Finding the Fourth Proportional to 15,733.56, 21,719.16 and 11,957.40

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Solution

The fourth proportional to 15,733.56, 21,719.16 and 11,957.40 is: 16,506.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,733.56 : 21,719.16 = 11,957.40 : x
  2. Step 2: Convert to fraction form
    15,733.56/21,719.16 = 11,957.40/x
  3. Step 3: Cross multiply
    15,733.56x = 21,719.16 × 11,957.40
  4. Step 4: Simplify right side
    15,733.56x = 259,704,683.78
  5. Step 5: Solve for x
    x = 259,704,683.78/15,733.56
  6. Step 6: Final answer
    x = 16,506.42

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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.