Home / 14,742.76-20,349.30-11,779.24

Finding the Fourth Proportional to 14,742.76, 20,349.30 and 11,779.24

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Solution

The fourth proportional to 14,742.76, 20,349.30 and 11,779.24 is: 16,258.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,742.76 : 20,349.30 = 11,779.24 : x
  2. Step 2: Convert to fraction form
    14,742.76/20,349.30 = 11,779.24/x
  3. Step 3: Cross multiply
    14,742.76x = 20,349.30 × 11,779.24
  4. Step 4: Simplify right side
    14,742.76x = 239,699,288.53
  5. Step 5: Solve for x
    x = 239,699,288.53/14,742.76
  6. Step 6: Final answer
    x = 16,258.78

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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.