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Finding the Fourth Proportional to 12,116.00, 16,719.99 and 6,810.87

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Solution

The fourth proportional to 12,116.00, 16,719.99 and 6,810.87 is: 9,398.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,116.00 : 16,719.99 = 6,810.87 : x
  2. Step 2: Convert to fraction form
    12,116.00/16,719.99 = 6,810.87/x
  3. Step 3: Cross multiply
    12,116.00x = 16,719.99 × 6,810.87
  4. Step 4: Simplify right side
    12,116.00x = 113,877,678.29
  5. Step 5: Solve for x
    x = 113,877,678.29/12,116.00
  6. Step 6: Final answer
    x = 9,398.95

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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.