Home / 9,771.08-14,656.64-3,928.20

Finding the Fourth Proportional to 9,771.08, 14,656.64 and 3,928.20

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Solution

The fourth proportional to 9,771.08, 14,656.64 and 3,928.20 is: 5,892.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,771.08 : 14,656.64 = 3,928.20 : x
  2. Step 2: Convert to fraction form
    9,771.08/14,656.64 = 3,928.20/x
  3. Step 3: Cross multiply
    9,771.08x = 14,656.64 × 3,928.20
  4. Step 4: Simplify right side
    9,771.08x = 57,574,213.25
  5. Step 5: Solve for x
    x = 57,574,213.25/9,771.08
  6. Step 6: Final answer
    x = 5,892.31

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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.