Home / 14,999.64-20,702.40-8,630.52

Finding the Fourth Proportional to 14,999.64, 20,702.40 and 8,630.52

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Solution

The fourth proportional to 14,999.64, 20,702.40 and 8,630.52 is: 11,911.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,999.64 : 20,702.40 = 8,630.52 : x
  2. Step 2: Convert to fraction form
    14,999.64/20,702.40 = 8,630.52/x
  3. Step 3: Cross multiply
    14,999.64x = 20,702.40 × 8,630.52
  4. Step 4: Simplify right side
    14,999.64x = 178,672,477.25
  5. Step 5: Solve for x
    x = 178,672,477.25/14,999.64
  6. Step 6: Final answer
    x = 11,911.78

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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.