Home / 8,853.19-13,280.60-2,279.40

Finding the Fourth Proportional to 8,853.19, 13,280.60 and 2,279.40

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Solution

The fourth proportional to 8,853.19, 13,280.60 and 2,279.40 is: 3,419.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,853.19 : 13,280.60 = 2,279.40 : x
  2. Step 2: Convert to fraction form
    8,853.19/13,280.60 = 2,279.40/x
  3. Step 3: Cross multiply
    8,853.19x = 13,280.60 × 2,279.40
  4. Step 4: Simplify right side
    8,853.19x = 30,271,799.64
  5. Step 5: Solve for x
    x = 30,271,799.64/8,853.19
  6. Step 6: Final answer
    x = 3,419.31

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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.