Home / 13,929.94-20,888.76-6,528.42

Finding the Fourth Proportional to 13,929.94, 20,888.76 and 6,528.42

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Solution

The fourth proportional to 13,929.94, 20,888.76 and 6,528.42 is: 9,789.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,929.94 : 20,888.76 = 6,528.42 : x
  2. Step 2: Convert to fraction form
    13,929.94/20,888.76 = 6,528.42/x
  3. Step 3: Cross multiply
    13,929.94x = 20,888.76 × 6,528.42
  4. Step 4: Simplify right side
    13,929.94x = 136,370,598.56
  5. Step 5: Solve for x
    x = 136,370,598.56/13,929.94
  6. Step 6: Final answer
    x = 9,789.75

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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.