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Finding the Fourth Proportional to 13,807.08, 20,671.74 and 10,506.60

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Solution

The fourth proportional to 13,807.08, 20,671.74 and 10,506.60 is: 15,730.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,807.08 : 20,671.74 = 10,506.60 : x
  2. Step 2: Convert to fraction form
    13,807.08/20,671.74 = 10,506.60/x
  3. Step 3: Cross multiply
    13,807.08x = 20,671.74 × 10,506.60
  4. Step 4: Simplify right side
    13,807.08x = 217,189,703.48
  5. Step 5: Solve for x
    x = 217,189,703.48/13,807.08
  6. Step 6: Final answer
    x = 15,730.31

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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.