Home / 16,974.08-23,423.36-9,420.32

Finding the Fourth Proportional to 16,974.08, 23,423.36 and 9,420.32

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Solution

The fourth proportional to 16,974.08, 23,423.36 and 9,420.32 is: 12,999.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,974.08 : 23,423.36 = 9,420.32 : x
  2. Step 2: Convert to fraction form
    16,974.08/23,423.36 = 9,420.32/x
  3. Step 3: Cross multiply
    16,974.08x = 23,423.36 × 9,420.32
  4. Step 4: Simplify right side
    16,974.08x = 220,655,546.68
  5. Step 5: Solve for x
    x = 220,655,546.68/16,974.08
  6. Step 6: Final answer
    x = 12,999.56

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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.