Home / 11,316.10-15,619.84-6,601.30

Finding the Fourth Proportional to 11,316.10, 15,619.84 and 6,601.30

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Solution

The fourth proportional to 11,316.10, 15,619.84 and 6,601.30 is: 9,111.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,316.10 : 15,619.84 = 6,601.30 : x
  2. Step 2: Convert to fraction form
    11,316.10/15,619.84 = 6,601.30/x
  3. Step 3: Cross multiply
    11,316.10x = 15,619.84 × 6,601.30
  4. Step 4: Simplify right side
    11,316.10x = 103,111,249.79
  5. Step 5: Solve for x
    x = 103,111,249.79/11,316.10
  6. Step 6: Final answer
    x = 9,111.91

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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.