Home / 7,343.60-11,015.40-4,427.60

Finding the Fourth Proportional to 7,343.60, 11,015.40 and 4,427.60

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Solution

The fourth proportional to 7,343.60, 11,015.40 and 4,427.60 is: 6,641.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,343.60 : 11,015.40 = 4,427.60 : x
  2. Step 2: Convert to fraction form
    7,343.60/11,015.40 = 4,427.60/x
  3. Step 3: Cross multiply
    7,343.60x = 11,015.40 × 4,427.60
  4. Step 4: Simplify right side
    7,343.60x = 48,771,785.04
  5. Step 5: Solve for x
    x = 48,771,785.04/7,343.60
  6. Step 6: Final answer
    x = 6,641.40

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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.