Home / 13,913.60-20,873.52-5,148.80

Finding the Fourth Proportional to 13,913.60, 20,873.52 and 5,148.80

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Solution

The fourth proportional to 13,913.60, 20,873.52 and 5,148.80 is: 7,724.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,913.60 : 20,873.52 = 5,148.80 : x
  2. Step 2: Convert to fraction form
    13,913.60/20,873.52 = 5,148.80/x
  3. Step 3: Cross multiply
    13,913.60x = 20,873.52 × 5,148.80
  4. Step 4: Simplify right side
    13,913.60x = 107,473,579.78
  5. Step 5: Solve for x
    x = 107,473,579.78/13,913.60
  6. Step 6: Final answer
    x = 7,724.35

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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.