Home / 9,977-14,965.58-4,428.85

Finding the Fourth Proportional to 9,977, 14,965.58 and 4,428.85

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Solution

The fourth proportional to 9,977, 14,965.58 and 4,428.85 is: 6,643.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,977 : 14,965.58 = 4,428.85 : x
  2. Step 2: Convert to fraction form
    9,977/14,965.58 = 4,428.85/x
  3. Step 3: Cross multiply
    9,977x = 14,965.58 × 4,428.85
  4. Step 4: Simplify right side
    9,977x = 66,280,324.25
  5. Step 5: Solve for x
    x = 66,280,324.25/9,977
  6. Step 6: Final answer
    x = 6,643.31

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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.