Home / 7,163.28-9,885.64-4,019.52

Finding the Fourth Proportional to 7,163.28, 9,885.64 and 4,019.52

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Solution

The fourth proportional to 7,163.28, 9,885.64 and 4,019.52 is: 5,547.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,163.28 : 9,885.64 = 4,019.52 : x
  2. Step 2: Convert to fraction form
    7,163.28/9,885.64 = 4,019.52/x
  3. Step 3: Cross multiply
    7,163.28x = 9,885.64 × 4,019.52
  4. Step 4: Simplify right side
    7,163.28x = 39,735,527.69
  5. Step 5: Solve for x
    x = 39,735,527.69/7,163.28
  6. Step 6: Final answer
    x = 5,547.11

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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.