Home / 11,826.20-16,322.10-7,113.08

Finding the Fourth Proportional to 11,826.20, 16,322.10 and 7,113.08

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Solution

The fourth proportional to 11,826.20, 16,322.10 and 7,113.08 is: 9,817.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,826.20 : 16,322.10 = 7,113.08 : x
  2. Step 2: Convert to fraction form
    11,826.20/16,322.10 = 7,113.08/x
  3. Step 3: Cross multiply
    11,826.20x = 16,322.10 × 7,113.08
  4. Step 4: Simplify right side
    11,826.20x = 116,100,403.07
  5. Step 5: Solve for x
    x = 116,100,403.07/11,826.20
  6. Step 6: Final answer
    x = 9,817.22

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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.