Home / 8,390.07-12,586.01-2,847.39

Finding the Fourth Proportional to 8,390.07, 12,586.01 and 2,847.39

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Solution

The fourth proportional to 8,390.07, 12,586.01 and 2,847.39 is: 4,271.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,390.07 : 12,586.01 = 2,847.39 : x
  2. Step 2: Convert to fraction form
    8,390.07/12,586.01 = 2,847.39/x
  3. Step 3: Cross multiply
    8,390.07x = 12,586.01 × 2,847.39
  4. Step 4: Simplify right side
    8,390.07x = 35,837,279.01
  5. Step 5: Solve for x
    x = 35,837,279.01/8,390.07
  6. Step 6: Final answer
    x = 4,271.39

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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.