Home / 14,065.68-19,410.64-7,778

Finding the Fourth Proportional to 14,065.68, 19,410.64 and 7,778

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Solution

The fourth proportional to 14,065.68, 19,410.64 and 7,778 is: 10,733.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,065.68 : 19,410.64 = 7,778 : x
  2. Step 2: Convert to fraction form
    14,065.68/19,410.64 = 7,778/x
  3. Step 3: Cross multiply
    14,065.68x = 19,410.64 × 7,778
  4. Step 4: Simplify right side
    14,065.68x = 150,975,957.92
  5. Step 5: Solve for x
    x = 150,975,957.92/14,065.68
  6. Step 6: Final answer
    x = 10,733.64

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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.