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Finding the Fourth Proportional to 16,858.60, 25,287.90 and 4,377.60

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Solution

The fourth proportional to 16,858.60, 25,287.90 and 4,377.60 is: 6,566.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,858.60 : 25,287.90 = 4,377.60 : x
  2. Step 2: Convert to fraction form
    16,858.60/25,287.90 = 4,377.60/x
  3. Step 3: Cross multiply
    16,858.60x = 25,287.90 × 4,377.60
  4. Step 4: Simplify right side
    16,858.60x = 110,700,311.04
  5. Step 5: Solve for x
    x = 110,700,311.04/16,858.60
  6. Step 6: Final answer
    x = 6,566.40

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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.