Home / 13,671.02-20,506.52-7,823.56

Finding the Fourth Proportional to 13,671.02, 20,506.52 and 7,823.56

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Solution

The fourth proportional to 13,671.02, 20,506.52 and 7,823.56 is: 11,735.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,671.02 : 20,506.52 = 7,823.56 : x
  2. Step 2: Convert to fraction form
    13,671.02/20,506.52 = 7,823.56/x
  3. Step 3: Cross multiply
    13,671.02x = 20,506.52 × 7,823.56
  4. Step 4: Simplify right side
    13,671.02x = 160,433,957.90
  5. Step 5: Solve for x
    x = 160,433,957.90/13,671.02
  6. Step 6: Final answer
    x = 11,735.34

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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.