Home / 17,955.58-26,909.60-13,779.64

Finding the Fourth Proportional to 17,955.58, 26,909.60 and 13,779.64

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Solution

The fourth proportional to 17,955.58, 26,909.60 and 13,779.64 is: 20,651.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,955.58 : 26,909.60 = 13,779.64 : x
  2. Step 2: Convert to fraction form
    17,955.58/26,909.60 = 13,779.64/x
  3. Step 3: Cross multiply
    17,955.58x = 26,909.60 × 13,779.64
  4. Step 4: Simplify right side
    17,955.58x = 370,804,600.54
  5. Step 5: Solve for x
    x = 370,804,600.54/17,955.58
  6. Step 6: Final answer
    x = 20,651.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.