Home / 8,370.03-12,555.12-2,130.05

Finding the Fourth Proportional to 8,370.03, 12,555.12 and 2,130.05

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Solution

The fourth proportional to 8,370.03, 12,555.12 and 2,130.05 is: 3,195.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,370.03 : 12,555.12 = 2,130.05 : x
  2. Step 2: Convert to fraction form
    8,370.03/12,555.12 = 2,130.05/x
  3. Step 3: Cross multiply
    8,370.03x = 12,555.12 × 2,130.05
  4. Step 4: Simplify right side
    8,370.03x = 26,743,033.36
  5. Step 5: Solve for x
    x = 26,743,033.36/8,370.03
  6. Step 6: Final answer
    x = 3,195.09

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Double scale
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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.