Home / 13,550.81-20,326.38-4,779.57

Finding the Fourth Proportional to 13,550.81, 20,326.38 and 4,779.57

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Solution

The fourth proportional to 13,550.81, 20,326.38 and 4,779.57 is: 7,169.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,550.81 : 20,326.38 = 4,779.57 : x
  2. Step 2: Convert to fraction form
    13,550.81/20,326.38 = 4,779.57/x
  3. Step 3: Cross multiply
    13,550.81x = 20,326.38 × 4,779.57
  4. Step 4: Simplify right side
    13,550.81x = 97,151,356.06
  5. Step 5: Solve for x
    x = 97,151,356.06/13,550.81
  6. Step 6: Final answer
    x = 7,169.42

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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.