Home / 9,121.02-13,681.52-5,222.72

Finding the Fourth Proportional to 9,121.02, 13,681.52 and 5,222.72

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Solution

The fourth proportional to 9,121.02, 13,681.52 and 5,222.72 is: 7,834.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121.02 : 13,681.52 = 5,222.72 : x
  2. Step 2: Convert to fraction form
    9,121.02/13,681.52 = 5,222.72/x
  3. Step 3: Cross multiply
    9,121.02x = 13,681.52 × 5,222.72
  4. Step 4: Simplify right side
    9,121.02x = 71,454,748.13
  5. Step 5: Solve for x
    x = 71,454,748.13/9,121.02
  6. Step 6: Final answer
    x = 7,834.07

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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.