Home / 13,292.64-18,329.60-8,815.04

Finding the Fourth Proportional to 13,292.64, 18,329.60 and 8,815.04

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Solution

The fourth proportional to 13,292.64, 18,329.60 and 8,815.04 is: 12,155.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,292.64 : 18,329.60 = 8,815.04 : x
  2. Step 2: Convert to fraction form
    13,292.64/18,329.60 = 8,815.04/x
  3. Step 3: Cross multiply
    13,292.64x = 18,329.60 × 8,815.04
  4. Step 4: Simplify right side
    13,292.64x = 161,576,157.18
  5. Step 5: Solve for x
    x = 161,576,157.18/13,292.64
  6. Step 6: Final answer
    x = 12,155.31

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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.