Home / 10,805.49-16,210.53-3,412.08

Finding the Fourth Proportional to 10,805.49, 16,210.53 and 3,412.08

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Solution

The fourth proportional to 10,805.49, 16,210.53 and 3,412.08 is: 5,118.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,805.49 : 16,210.53 = 3,412.08 : x
  2. Step 2: Convert to fraction form
    10,805.49/16,210.53 = 3,412.08/x
  3. Step 3: Cross multiply
    10,805.49x = 16,210.53 × 3,412.08
  4. Step 4: Simplify right side
    10,805.49x = 55,311,625.20
  5. Step 5: Solve for x
    x = 55,311,625.20/10,805.49
  6. Step 6: Final answer
    x = 5,118.84

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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.