Home / 13,280.55-19,915.16-4,511.49

Finding the Fourth Proportional to 13,280.55, 19,915.16 and 4,511.49

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Solution

The fourth proportional to 13,280.55, 19,915.16 and 4,511.49 is: 6,765.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280.55 : 19,915.16 = 4,511.49 : x
  2. Step 2: Convert to fraction form
    13,280.55/19,915.16 = 4,511.49/x
  3. Step 3: Cross multiply
    13,280.55x = 19,915.16 × 4,511.49
  4. Step 4: Simplify right side
    13,280.55x = 89,847,022.63
  5. Step 5: Solve for x
    x = 89,847,022.63/13,280.55
  6. Step 6: Final answer
    x = 6,765.31

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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.