Home / 10,821.87-16,245.09-10,108.35

Finding the Fourth Proportional to 10,821.87, 16,245.09 and 10,108.35

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Solution

The fourth proportional to 10,821.87, 16,245.09 and 10,108.35 is: 15,174.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,821.87 : 16,245.09 = 10,108.35 : x
  2. Step 2: Convert to fraction form
    10,821.87/16,245.09 = 10,108.35/x
  3. Step 3: Cross multiply
    10,821.87x = 16,245.09 × 10,108.35
  4. Step 4: Simplify right side
    10,821.87x = 164,211,055.50
  5. Step 5: Solve for x
    x = 164,211,055.50/10,821.87
  6. Step 6: Final answer
    x = 15,174.00

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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.