Home / 14,862.95-20,511.60-8,148.86

Finding the Fourth Proportional to 14,862.95, 20,511.60 and 8,148.86

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Solution

The fourth proportional to 14,862.95, 20,511.60 and 8,148.86 is: 11,245.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,862.95 : 20,511.60 = 8,148.86 : x
  2. Step 2: Convert to fraction form
    14,862.95/20,511.60 = 8,148.86/x
  3. Step 3: Cross multiply
    14,862.95x = 20,511.60 × 8,148.86
  4. Step 4: Simplify right side
    14,862.95x = 167,146,156.78
  5. Step 5: Solve for x
    x = 167,146,156.78/14,862.95
  6. Step 6: Final answer
    x = 11,245.83

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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.