Home / 11,318.49-15,621.38-6,602.76

Finding the Fourth Proportional to 11,318.49, 15,621.38 and 6,602.76

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Solution

The fourth proportional to 11,318.49, 15,621.38 and 6,602.76 is: 9,112.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,318.49 : 15,621.38 = 6,602.76 : x
  2. Step 2: Convert to fraction form
    11,318.49/15,621.38 = 6,602.76/x
  3. Step 3: Cross multiply
    11,318.49x = 15,621.38 × 6,602.76
  4. Step 4: Simplify right side
    11,318.49x = 103,144,190.00
  5. Step 5: Solve for x
    x = 103,144,190.00/11,318.49
  6. Step 6: Final answer
    x = 9,112.89

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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.