Home / 8,911.03-13,357.72-4,222.75

Finding the Fourth Proportional to 8,911.03, 13,357.72 and 4,222.75

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Solution

The fourth proportional to 8,911.03, 13,357.72 and 4,222.75 is: 6,329.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,911.03 : 13,357.72 = 4,222.75 : x
  2. Step 2: Convert to fraction form
    8,911.03/13,357.72 = 4,222.75/x
  3. Step 3: Cross multiply
    8,911.03x = 13,357.72 × 4,222.75
  4. Step 4: Simplify right side
    8,911.03x = 56,406,312.13
  5. Step 5: Solve for x
    x = 56,406,312.13/8,911.03
  6. Step 6: Final answer
    x = 6,329.94

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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.