Home / 8,405.16-12,606.66-2,858.28

Finding the Fourth Proportional to 8,405.16, 12,606.66 and 2,858.28

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Solution

The fourth proportional to 8,405.16, 12,606.66 and 2,858.28 is: 4,287.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,405.16 : 12,606.66 = 2,858.28 : x
  2. Step 2: Convert to fraction form
    8,405.16/12,606.66 = 2,858.28/x
  3. Step 3: Cross multiply
    8,405.16x = 12,606.66 × 2,858.28
  4. Step 4: Simplify right side
    8,405.16x = 36,033,364.14
  5. Step 5: Solve for x
    x = 36,033,364.14/8,405.16
  6. Step 6: Final answer
    x = 4,287.05

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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.