Home / 13,971.02-20,928.41-6,464.00

Finding the Fourth Proportional to 13,971.02, 20,928.41 and 6,464.00

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Solution

The fourth proportional to 13,971.02, 20,928.41 and 6,464.00 is: 9,683.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971.02 : 20,928.41 = 6,464.00 : x
  2. Step 2: Convert to fraction form
    13,971.02/20,928.41 = 6,464.00/x
  3. Step 3: Cross multiply
    13,971.02x = 20,928.41 × 6,464.00
  4. Step 4: Simplify right side
    13,971.02x = 135,281,286.48
  5. Step 5: Solve for x
    x = 135,281,286.48/13,971.02
  6. Step 6: Final answer
    x = 9,683.00

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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.