Home / 13,415.49-20,123.24-4,650.48

Finding the Fourth Proportional to 13,415.49, 20,123.24 and 4,650.48

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Solution

The fourth proportional to 13,415.49, 20,123.24 and 4,650.48 is: 6,975.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,415.49 : 20,123.24 = 4,650.48 : x
  2. Step 2: Convert to fraction form
    13,415.49/20,123.24 = 4,650.48/x
  3. Step 3: Cross multiply
    13,415.49x = 20,123.24 × 4,650.48
  4. Step 4: Simplify right side
    13,415.49x = 93,582,701.90
  5. Step 5: Solve for x
    x = 93,582,701.90/13,415.49
  6. Step 6: Final answer
    x = 6,975.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.