Home / 14,740.08-20,339.68-8,770.56

Finding the Fourth Proportional to 14,740.08, 20,339.68 and 8,770.56

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Solution

The fourth proportional to 14,740.08, 20,339.68 and 8,770.56 is: 12,102.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,740.08 : 20,339.68 = 8,770.56 : x
  2. Step 2: Convert to fraction form
    14,740.08/20,339.68 = 8,770.56/x
  3. Step 3: Cross multiply
    14,740.08x = 20,339.68 × 8,770.56
  4. Step 4: Simplify right side
    14,740.08x = 178,390,383.82
  5. Step 5: Solve for x
    x = 178,390,383.82/14,740.08
  6. Step 6: Final answer
    x = 12,102.40

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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.