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Finding the Fourth Proportional to 10,643.52, 15,953.94 and 5,093.40

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Solution

The fourth proportional to 10,643.52, 15,953.94 and 5,093.40 is: 7,634.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,643.52 : 15,953.94 = 5,093.40 : x
  2. Step 2: Convert to fraction form
    10,643.52/15,953.94 = 5,093.40/x
  3. Step 3: Cross multiply
    10,643.52x = 15,953.94 × 5,093.40
  4. Step 4: Simplify right side
    10,643.52x = 81,259,798.00
  5. Step 5: Solve for x
    x = 81,259,798.00/10,643.52
  6. Step 6: Final answer
    x = 7,634.67

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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.