Home / 13,023.40-19,530.30-4,258.60

Finding the Fourth Proportional to 13,023.40, 19,530.30 and 4,258.60

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Solution

The fourth proportional to 13,023.40, 19,530.30 and 4,258.60 is: 6,386.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,023.40 : 19,530.30 = 4,258.60 : x
  2. Step 2: Convert to fraction form
    13,023.40/19,530.30 = 4,258.60/x
  3. Step 3: Cross multiply
    13,023.40x = 19,530.30 × 4,258.60
  4. Step 4: Simplify right side
    13,023.40x = 83,171,735.58
  5. Step 5: Solve for x
    x = 83,171,735.58/13,023.40
  6. Step 6: Final answer
    x = 6,386.33

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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.