Home / 9,477.20-14,215.80-4,811.60

Finding the Fourth Proportional to 9,477.20, 14,215.80 and 4,811.60

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Solution

The fourth proportional to 9,477.20, 14,215.80 and 4,811.60 is: 7,217.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,477.20 : 14,215.80 = 4,811.60 : x
  2. Step 2: Convert to fraction form
    9,477.20/14,215.80 = 4,811.60/x
  3. Step 3: Cross multiply
    9,477.20x = 14,215.80 × 4,811.60
  4. Step 4: Simplify right side
    9,477.20x = 68,400,743.28
  5. Step 5: Solve for x
    x = 68,400,743.28/9,477.20
  6. Step 6: Final answer
    x = 7,217.40

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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.