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Finding the Fourth Proportional to 14,990.52, 20,683.70 and 8,699.52

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Solution

The fourth proportional to 14,990.52, 20,683.70 and 8,699.52 is: 12,003.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,990.52 : 20,683.70 = 8,699.52 : x
  2. Step 2: Convert to fraction form
    14,990.52/20,683.70 = 8,699.52/x
  3. Step 3: Cross multiply
    14,990.52x = 20,683.70 × 8,699.52
  4. Step 4: Simplify right side
    14,990.52x = 179,938,261.82
  5. Step 5: Solve for x
    x = 179,938,261.82/14,990.52
  6. Step 6: Final answer
    x = 12,003.47

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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.