Home / 9,179.56-13,785.50-6,840.20

Finding the Fourth Proportional to 9,179.56, 13,785.50 and 6,840.20

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Solution

The fourth proportional to 9,179.56, 13,785.50 and 6,840.20 is: 10,272.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,179.56 : 13,785.50 = 6,840.20 : x
  2. Step 2: Convert to fraction form
    9,179.56/13,785.50 = 6,840.20/x
  3. Step 3: Cross multiply
    9,179.56x = 13,785.50 × 6,840.20
  4. Step 4: Simplify right side
    9,179.56x = 94,295,577.10
  5. Step 5: Solve for x
    x = 94,295,577.10/9,179.56
  6. Step 6: Final answer
    x = 10,272.34

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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.