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Finding the Fourth Proportional to 11,616.61, 16,030.45 and 6,580.90

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Solution

The fourth proportional to 11,616.61, 16,030.45 and 6,580.90 is: 9,081.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,616.61 : 16,030.45 = 6,580.90 : x
  2. Step 2: Convert to fraction form
    11,616.61/16,030.45 = 6,580.90/x
  3. Step 3: Cross multiply
    11,616.61x = 16,030.45 × 6,580.90
  4. Step 4: Simplify right side
    11,616.61x = 105,494,788.41
  5. Step 5: Solve for x
    x = 105,494,788.41/11,616.61
  6. Step 6: Final answer
    x = 9,081.37

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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.