Home / 11,392.60-15,698.46-8,403.70

Finding the Fourth Proportional to 11,392.60, 15,698.46 and 8,403.70

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Solution

The fourth proportional to 11,392.60, 15,698.46 and 8,403.70 is: 11,579.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,392.60 : 15,698.46 = 8,403.70 : x
  2. Step 2: Convert to fraction form
    11,392.60/15,698.46 = 8,403.70/x
  3. Step 3: Cross multiply
    11,392.60x = 15,698.46 × 8,403.70
  4. Step 4: Simplify right side
    11,392.60x = 131,925,148.30
  5. Step 5: Solve for x
    x = 131,925,148.30/11,392.60
  6. Step 6: Final answer
    x = 11,579.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.