Home / 13,306.40-19,959.60-3,445.60

Finding the Fourth Proportional to 13,306.40, 19,959.60 and 3,445.60

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Solution

The fourth proportional to 13,306.40, 19,959.60 and 3,445.60 is: 5,168.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,306.40 : 19,959.60 = 3,445.60 : x
  2. Step 2: Convert to fraction form
    13,306.40/19,959.60 = 3,445.60/x
  3. Step 3: Cross multiply
    13,306.40x = 19,959.60 × 3,445.60
  4. Step 4: Simplify right side
    13,306.40x = 68,772,797.76
  5. Step 5: Solve for x
    x = 68,772,797.76/13,306.40
  6. Step 6: Final answer
    x = 5,168.40

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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.