Home / 11,083.37-15,315.08-8,426.16

Finding the Fourth Proportional to 11,083.37, 15,315.08 and 8,426.16

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Solution

The fourth proportional to 11,083.37, 15,315.08 and 8,426.16 is: 11,643.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,083.37 : 15,315.08 = 8,426.16 : x
  2. Step 2: Convert to fraction form
    11,083.37/15,315.08 = 8,426.16/x
  3. Step 3: Cross multiply
    11,083.37x = 15,315.08 × 8,426.16
  4. Step 4: Simplify right side
    11,083.37x = 129,047,272.36
  5. Step 5: Solve for x
    x = 129,047,272.36/11,083.37
  6. Step 6: Final answer
    x = 11,643.33

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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.