Home / 11,711.36-16,161.48-6,406.13

Finding the Fourth Proportional to 11,711.36, 16,161.48 and 6,406.13

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Solution

The fourth proportional to 11,711.36, 16,161.48 and 6,406.13 is: 8,840.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,711.36 : 16,161.48 = 6,406.13 : x
  2. Step 2: Convert to fraction form
    11,711.36/16,161.48 = 6,406.13/x
  3. Step 3: Cross multiply
    11,711.36x = 16,161.48 × 6,406.13
  4. Step 4: Simplify right side
    11,711.36x = 103,532,461.07
  5. Step 5: Solve for x
    x = 103,532,461.07/11,711.36
  6. Step 6: Final answer
    x = 8,840.35

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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.