Home / 7,163.46-9,885.69-4,019.58

Finding the Fourth Proportional to 7,163.46, 9,885.69 and 4,019.58

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Solution

The fourth proportional to 7,163.46, 9,885.69 and 4,019.58 is: 5,547.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,163.46 : 9,885.69 = 4,019.58 : x
  2. Step 2: Convert to fraction form
    7,163.46/9,885.69 = 4,019.58/x
  3. Step 3: Cross multiply
    7,163.46x = 9,885.69 × 4,019.58
  4. Step 4: Simplify right side
    7,163.46x = 39,736,321.81
  5. Step 5: Solve for x
    x = 39,736,321.81/7,163.46
  6. Step 6: Final answer
    x = 5,547.09

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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.