Home / 15,758.79-21,750.84-9,794.96

Finding the Fourth Proportional to 15,758.79, 21,750.84 and 9,794.96

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Solution

The fourth proportional to 15,758.79, 21,750.84 and 9,794.96 is: 13,519.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,758.79 : 21,750.84 = 9,794.96 : x
  2. Step 2: Convert to fraction form
    15,758.79/21,750.84 = 9,794.96/x
  3. Step 3: Cross multiply
    15,758.79x = 21,750.84 × 9,794.96
  4. Step 4: Simplify right side
    15,758.79x = 213,048,558.79
  5. Step 5: Solve for x
    x = 213,048,558.79/15,758.79
  6. Step 6: Final answer
    x = 13,519.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.