Home / 10,183.88-14,060.10-7,821.32

Finding the Fourth Proportional to 10,183.88, 14,060.10 and 7,821.32

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Solution

The fourth proportional to 10,183.88, 14,060.10 and 7,821.32 is: 10,798.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,183.88 : 14,060.10 = 7,821.32 : x
  2. Step 2: Convert to fraction form
    10,183.88/14,060.10 = 7,821.32/x
  3. Step 3: Cross multiply
    10,183.88x = 14,060.10 × 7,821.32
  4. Step 4: Simplify right side
    10,183.88x = 109,968,541.33
  5. Step 5: Solve for x
    x = 109,968,541.33/10,183.88
  6. Step 6: Final answer
    x = 10,798.30

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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.