Home / 19,483.40-26,889.58-12,774.68

Finding the Fourth Proportional to 19,483.40, 26,889.58 and 12,774.68

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Solution

The fourth proportional to 19,483.40, 26,889.58 and 12,774.68 is: 17,630.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,483.40 : 26,889.58 = 12,774.68 : x
  2. Step 2: Convert to fraction form
    19,483.40/26,889.58 = 12,774.68/x
  3. Step 3: Cross multiply
    19,483.40x = 26,889.58 × 12,774.68
  4. Step 4: Simplify right side
    19,483.40x = 343,505,779.83
  5. Step 5: Solve for x
    x = 343,505,779.83/19,483.40
  6. Step 6: Final answer
    x = 17,630.69

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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.