Home / 9,121.01-13,681.53-5,222.72

Finding the Fourth Proportional to 9,121.01, 13,681.53 and 5,222.72

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Solution

The fourth proportional to 9,121.01, 13,681.53 and 5,222.72 is: 7,834.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121.01 : 13,681.53 = 5,222.72 : x
  2. Step 2: Convert to fraction form
    9,121.01/13,681.53 = 5,222.72/x
  3. Step 3: Cross multiply
    9,121.01x = 13,681.53 × 5,222.72
  4. Step 4: Simplify right side
    9,121.01x = 71,454,800.36
  5. Step 5: Solve for x
    x = 71,454,800.36/9,121.01
  6. Step 6: Final answer
    x = 7,834.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.