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Finding the Fourth Proportional to 14,988, 20,683.77 and 8,273.61

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Solution

The fourth proportional to 14,988, 20,683.77 and 8,273.61 is: 11,417.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,988 : 20,683.77 = 8,273.61 : x
  2. Step 2: Convert to fraction form
    14,988/20,683.77 = 8,273.61/x
  3. Step 3: Cross multiply
    14,988x = 20,683.77 × 8,273.61
  4. Step 4: Simplify right side
    14,988x = 171,129,446.31
  5. Step 5: Solve for x
    x = 171,129,446.31/14,988
  6. Step 6: Final answer
    x = 11,417.76

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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.