Home / 7,163.47-9,885.59-4,019.66

Finding the Fourth Proportional to 7,163.47, 9,885.59 and 4,019.66

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Solution

The fourth proportional to 7,163.47, 9,885.59 and 4,019.66 is: 5,547.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,163.47 : 9,885.59 = 4,019.66 : x
  2. Step 2: Convert to fraction form
    7,163.47/9,885.59 = 4,019.66/x
  3. Step 3: Cross multiply
    7,163.47x = 9,885.59 × 4,019.66
  4. Step 4: Simplify right side
    7,163.47x = 39,736,715.93
  5. Step 5: Solve for x
    x = 39,736,715.93/7,163.47
  6. Step 6: Final answer
    x = 5,547.13

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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.