Home / 11,317.10-15,619.48-6,601.38

Finding the Fourth Proportional to 11,317.10, 15,619.48 and 6,601.38

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Solution

The fourth proportional to 11,317.10, 15,619.48 and 6,601.38 is: 9,111.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,317.10 : 15,619.48 = 6,601.38 : x
  2. Step 2: Convert to fraction form
    11,317.10/15,619.48 = 6,601.38/x
  3. Step 3: Cross multiply
    11,317.10x = 15,619.48 × 6,601.38
  4. Step 4: Simplify right side
    11,317.10x = 103,110,122.88
  5. Step 5: Solve for x
    x = 103,110,122.88/11,317.10
  6. Step 6: Final answer
    x = 9,111.00

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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.