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Finding the Fourth Proportional to 12,259.67, 16,898.12 and 8,669.99

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Solution

The fourth proportional to 12,259.67, 16,898.12 and 8,669.99 is: 11,950.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,259.67 : 16,898.12 = 8,669.99 : x
  2. Step 2: Convert to fraction form
    12,259.67/16,898.12 = 8,669.99/x
  3. Step 3: Cross multiply
    12,259.67x = 16,898.12 × 8,669.99
  4. Step 4: Simplify right side
    12,259.67x = 146,506,467.77
  5. Step 5: Solve for x
    x = 146,506,467.77/12,259.67
  6. Step 6: Final answer
    x = 11,950.28

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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.