Home / 13,503.14-20,252.66-5,187.07

Finding the Fourth Proportional to 13,503.14, 20,252.66 and 5,187.07

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Solution

The fourth proportional to 13,503.14, 20,252.66 and 5,187.07 is: 7,779.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,503.14 : 20,252.66 = 5,187.07 : x
  2. Step 2: Convert to fraction form
    13,503.14/20,252.66 = 5,187.07/x
  3. Step 3: Cross multiply
    13,503.14x = 20,252.66 × 5,187.07
  4. Step 4: Simplify right side
    13,503.14x = 105,051,888.54
  5. Step 5: Solve for x
    x = 105,051,888.54/13,503.14
  6. Step 6: Final answer
    x = 7,779.81

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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.