Home / 10,646.56-15,955.44-8,338.72

Finding the Fourth Proportional to 10,646.56, 15,955.44 and 8,338.72

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Solution

The fourth proportional to 10,646.56, 15,955.44 and 8,338.72 is: 12,496.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,646.56 : 15,955.44 = 8,338.72 : x
  2. Step 2: Convert to fraction form
    10,646.56/15,955.44 = 8,338.72/x
  3. Step 3: Cross multiply
    10,646.56x = 15,955.44 × 8,338.72
  4. Step 4: Simplify right side
    10,646.56x = 133,047,946.64
  5. Step 5: Solve for x
    x = 133,047,946.64/10,646.56
  6. Step 6: Final answer
    x = 12,496.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.