Home / 14,669.12-20,239.80-8,702.30

Finding the Fourth Proportional to 14,669.12, 20,239.80 and 8,702.30

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Solution

The fourth proportional to 14,669.12, 20,239.80 and 8,702.30 is: 12,007.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,669.12 : 20,239.80 = 8,702.30 : x
  2. Step 2: Convert to fraction form
    14,669.12/20,239.80 = 8,702.30/x
  3. Step 3: Cross multiply
    14,669.12x = 20,239.80 × 8,702.30
  4. Step 4: Simplify right side
    14,669.12x = 176,132,811.54
  5. Step 5: Solve for x
    x = 176,132,811.54/14,669.12
  6. Step 6: Final answer
    x = 12,007.05

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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.