Home / 15,193.17-20,975.36-11,579.76

Finding the Fourth Proportional to 15,193.17, 20,975.36 and 11,579.76

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Solution

The fourth proportional to 15,193.17, 20,975.36 and 11,579.76 is: 15,986.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,193.17 : 20,975.36 = 11,579.76 : x
  2. Step 2: Convert to fraction form
    15,193.17/20,975.36 = 11,579.76/x
  3. Step 3: Cross multiply
    15,193.17x = 20,975.36 × 11,579.76
  4. Step 4: Simplify right side
    15,193.17x = 242,889,576.81
  5. Step 5: Solve for x
    x = 242,889,576.81/15,193.17
  6. Step 6: Final answer
    x = 15,986.76

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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.