Home / 14,147.95-21,219.57-4,284.89

Finding the Fourth Proportional to 14,147.95, 21,219.57 and 4,284.89

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Solution

The fourth proportional to 14,147.95, 21,219.57 and 4,284.89 is: 6,426.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,147.95 : 21,219.57 = 4,284.89 : x
  2. Step 2: Convert to fraction form
    14,147.95/21,219.57 = 4,284.89/x
  3. Step 3: Cross multiply
    14,147.95x = 21,219.57 × 4,284.89
  4. Step 4: Simplify right side
    14,147.95x = 90,923,449.14
  5. Step 5: Solve for x
    x = 90,923,449.14/14,147.95
  6. Step 6: Final answer
    x = 6,426.62

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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.