Home / 18,840.28-28,247.60-6,354.40

Finding the Fourth Proportional to 18,840.28, 28,247.60 and 6,354.40

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Solution

The fourth proportional to 18,840.28, 28,247.60 and 6,354.40 is: 9,527.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,840.28 : 28,247.60 = 6,354.40 : x
  2. Step 2: Convert to fraction form
    18,840.28/28,247.60 = 6,354.40/x
  3. Step 3: Cross multiply
    18,840.28x = 28,247.60 × 6,354.40
  4. Step 4: Simplify right side
    18,840.28x = 179,496,549.44
  5. Step 5: Solve for x
    x = 179,496,549.44/18,840.28
  6. Step 6: Final answer
    x = 9,527.28

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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.