Home / 13,922.12-20,888.31-6,528.98

Finding the Fourth Proportional to 13,922.12, 20,888.31 and 6,528.98

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Solution

The fourth proportional to 13,922.12, 20,888.31 and 6,528.98 is: 9,795.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,922.12 : 20,888.31 = 6,528.98 : x
  2. Step 2: Convert to fraction form
    13,922.12/20,888.31 = 6,528.98/x
  3. Step 3: Cross multiply
    13,922.12x = 20,888.31 × 6,528.98
  4. Step 4: Simplify right side
    13,922.12x = 136,379,358.22
  5. Step 5: Solve for x
    x = 136,379,358.22/13,922.12
  6. Step 6: Final answer
    x = 9,795.88

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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.