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Finding the Fourth Proportional to 14,295.12, 19,737.09 and 8,919.69

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Solution

The fourth proportional to 14,295.12, 19,737.09 and 8,919.69 is: 12,315.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,295.12 : 19,737.09 = 8,919.69 : x
  2. Step 2: Convert to fraction form
    14,295.12/19,737.09 = 8,919.69/x
  3. Step 3: Cross multiply
    14,295.12x = 19,737.09 × 8,919.69
  4. Step 4: Simplify right side
    14,295.12x = 176,048,724.30
  5. Step 5: Solve for x
    x = 176,048,724.30/14,295.12
  6. Step 6: Final answer
    x = 12,315.30

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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.