Home / 8,460.03-12,690.46-2,220.06

Finding the Fourth Proportional to 8,460.03, 12,690.46 and 2,220.06

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Solution

The fourth proportional to 8,460.03, 12,690.46 and 2,220.06 is: 3,330.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,460.03 : 12,690.46 = 2,220.06 : x
  2. Step 2: Convert to fraction form
    8,460.03/12,690.46 = 2,220.06/x
  3. Step 3: Cross multiply
    8,460.03x = 12,690.46 × 2,220.06
  4. Step 4: Simplify right side
    8,460.03x = 28,173,513.43
  5. Step 5: Solve for x
    x = 28,173,513.43/8,460.03
  6. Step 6: Final answer
    x = 3,330.19

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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.