Home / 11,065.56-15,271.38-6,819.36

Finding the Fourth Proportional to 11,065.56, 15,271.38 and 6,819.36

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Solution

The fourth proportional to 11,065.56, 15,271.38 and 6,819.36 is: 9,411.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,065.56 : 15,271.38 = 6,819.36 : x
  2. Step 2: Convert to fraction form
    11,065.56/15,271.38 = 6,819.36/x
  3. Step 3: Cross multiply
    11,065.56x = 15,271.38 × 6,819.36
  4. Step 4: Simplify right side
    11,065.56x = 104,141,037.92
  5. Step 5: Solve for x
    x = 104,141,037.92/11,065.56
  6. Step 6: Final answer
    x = 9,411.28

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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.