Home / 13,888.22-20,828.21-7,651.19

Finding the Fourth Proportional to 13,888.22, 20,828.21 and 7,651.19

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Solution

The fourth proportional to 13,888.22, 20,828.21 and 7,651.19 is: 11,474.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,888.22 : 20,828.21 = 7,651.19 : x
  2. Step 2: Convert to fraction form
    13,888.22/20,828.21 = 7,651.19/x
  3. Step 3: Cross multiply
    13,888.22x = 20,828.21 × 7,651.19
  4. Step 4: Simplify right side
    13,888.22x = 159,360,605.88
  5. Step 5: Solve for x
    x = 159,360,605.88/13,888.22
  6. Step 6: Final answer
    x = 11,474.52

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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.