Home / 14,222.08-19,621-8,907.64

Finding the Fourth Proportional to 14,222.08, 19,621 and 8,907.64

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Solution

The fourth proportional to 14,222.08, 19,621 and 8,907.64 is: 12,289.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,222.08 : 19,621 = 8,907.64 : x
  2. Step 2: Convert to fraction form
    14,222.08/19,621 = 8,907.64/x
  3. Step 3: Cross multiply
    14,222.08x = 19,621 × 8,907.64
  4. Step 4: Simplify right side
    14,222.08x = 174,776,804.44
  5. Step 5: Solve for x
    x = 174,776,804.44/14,222.08
  6. Step 6: Final answer
    x = 12,289.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.