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Finding the Fourth Proportional to 11,835.60, 16,334.10 and 6,530.88

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Solution

The fourth proportional to 11,835.60, 16,334.10 and 6,530.88 is: 9,013.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,835.60 : 16,334.10 = 6,530.88 : x
  2. Step 2: Convert to fraction form
    11,835.60/16,334.10 = 6,530.88/x
  3. Step 3: Cross multiply
    11,835.60x = 16,334.10 × 6,530.88
  4. Step 4: Simplify right side
    11,835.60x = 106,676,047.01
  5. Step 5: Solve for x
    x = 106,676,047.01/11,835.60
  6. Step 6: Final answer
    x = 9,013.15

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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.