Home / 16,974.15-23,423.63-9,420.80

Finding the Fourth Proportional to 16,974.15, 23,423.63 and 9,420.80

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Solution

The fourth proportional to 16,974.15, 23,423.63 and 9,420.80 is: 13,000.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,974.15 : 23,423.63 = 9,420.80 : x
  2. Step 2: Convert to fraction form
    16,974.15/23,423.63 = 9,420.80/x
  3. Step 3: Cross multiply
    16,974.15x = 23,423.63 × 9,420.80
  4. Step 4: Simplify right side
    16,974.15x = 220,669,333.50
  5. Step 5: Solve for x
    x = 220,669,333.50/16,974.15
  6. Step 6: Final answer
    x = 13,000.32

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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.