Home / 16,815.15-23,201.33-9,647.35

Finding the Fourth Proportional to 16,815.15, 23,201.33 and 9,647.35

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Solution

The fourth proportional to 16,815.15, 23,201.33 and 9,647.35 is: 13,311.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,815.15 : 23,201.33 = 9,647.35 : x
  2. Step 2: Convert to fraction form
    16,815.15/23,201.33 = 9,647.35/x
  3. Step 3: Cross multiply
    16,815.15x = 23,201.33 × 9,647.35
  4. Step 4: Simplify right side
    16,815.15x = 223,831,244.74
  5. Step 5: Solve for x
    x = 223,831,244.74/16,815.15
  6. Step 6: Final answer
    x = 13,311.28

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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.