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Finding the Fourth Proportional to 11,870.45, 17,807.04 and 5,295.81

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Solution

The fourth proportional to 11,870.45, 17,807.04 and 5,295.81 is: 7,944.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,870.45 : 17,807.04 = 5,295.81 : x
  2. Step 2: Convert to fraction form
    11,870.45/17,807.04 = 5,295.81/x
  3. Step 3: Cross multiply
    11,870.45x = 17,807.04 × 5,295.81
  4. Step 4: Simplify right side
    11,870.45x = 94,302,700.50
  5. Step 5: Solve for x
    x = 94,302,700.50/11,870.45
  6. Step 6: Final answer
    x = 7,944.33

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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.