Home / 8,980.19-12,392.68-5,204.09

Finding the Fourth Proportional to 8,980.19, 12,392.68 and 5,204.09

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Solution

The fourth proportional to 8,980.19, 12,392.68 and 5,204.09 is: 7,181.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,980.19 : 12,392.68 = 5,204.09 : x
  2. Step 2: Convert to fraction form
    8,980.19/12,392.68 = 5,204.09/x
  3. Step 3: Cross multiply
    8,980.19x = 12,392.68 × 5,204.09
  4. Step 4: Simplify right side
    8,980.19x = 64,492,622.06
  5. Step 5: Solve for x
    x = 64,492,622.06/8,980.19
  6. Step 6: Final answer
    x = 7,181.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.