Home / 10,999.41-16,499.38-3,980.08

Finding the Fourth Proportional to 10,999.41, 16,499.38 and 3,980.08

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Solution

The fourth proportional to 10,999.41, 16,499.38 and 3,980.08 is: 5,970.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,999.41 : 16,499.38 = 3,980.08 : x
  2. Step 2: Convert to fraction form
    10,999.41/16,499.38 = 3,980.08/x
  3. Step 3: Cross multiply
    10,999.41x = 16,499.38 × 3,980.08
  4. Step 4: Simplify right side
    10,999.41x = 65,668,870.49
  5. Step 5: Solve for x
    x = 65,668,870.49/10,999.41
  6. Step 6: Final answer
    x = 5,970.22

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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.