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Finding the Fourth Proportional to 11,813, 16,301.62 and 6,507.76

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Solution

The fourth proportional to 11,813, 16,301.62 and 6,507.76 is: 8,980.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,813 : 16,301.62 = 6,507.76 : x
  2. Step 2: Convert to fraction form
    11,813/16,301.62 = 6,507.76/x
  3. Step 3: Cross multiply
    11,813x = 16,301.62 × 6,507.76
  4. Step 4: Simplify right side
    11,813x = 106,087,030.57
  5. Step 5: Solve for x
    x = 106,087,030.57/11,813
  6. Step 6: Final answer
    x = 8,980.53

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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.