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Finding the Fourth Proportional to 14,012.61, 21,014.81 and 5,245.48

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Solution

The fourth proportional to 14,012.61, 21,014.81 and 5,245.48 is: 7,866.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,012.61 : 21,014.81 = 5,245.48 : x
  2. Step 2: Convert to fraction form
    14,012.61/21,014.81 = 5,245.48/x
  3. Step 3: Cross multiply
    14,012.61x = 21,014.81 × 5,245.48
  4. Step 4: Simplify right side
    14,012.61x = 110,232,667.06
  5. Step 5: Solve for x
    x = 110,232,667.06/14,012.61
  6. Step 6: Final answer
    x = 7,866.68

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1.5x scale

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.