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Finding the Fourth Proportional to 13,008.65, 17,947.52 and 7,342.73

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Solution

The fourth proportional to 13,008.65, 17,947.52 and 7,342.73 is: 10,130.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,008.65 : 17,947.52 = 7,342.73 : x
  2. Step 2: Convert to fraction form
    13,008.65/17,947.52 = 7,342.73/x
  3. Step 3: Cross multiply
    13,008.65x = 17,947.52 × 7,342.73
  4. Step 4: Simplify right side
    13,008.65x = 131,783,756.82
  5. Step 5: Solve for x
    x = 131,783,756.82/13,008.65
  6. Step 6: Final answer
    x = 10,130.47

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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.