Home / 10,813.10-16,218.91-6,653.78

Finding the Fourth Proportional to 10,813.10, 16,218.91 and 6,653.78

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Solution

The fourth proportional to 10,813.10, 16,218.91 and 6,653.78 is: 9,980.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,813.10 : 16,218.91 = 6,653.78 : x
  2. Step 2: Convert to fraction form
    10,813.10/16,218.91 = 6,653.78/x
  3. Step 3: Cross multiply
    10,813.10x = 16,218.91 × 6,653.78
  4. Step 4: Simplify right side
    10,813.10x = 107,917,058.98
  5. Step 5: Solve for x
    x = 107,917,058.98/10,813.10
  6. Step 6: Final answer
    x = 9,980.21

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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.