Home / 15,771.35-21,764.93-8,698.23

Finding the Fourth Proportional to 15,771.35, 21,764.93 and 8,698.23

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Solution

The fourth proportional to 15,771.35, 21,764.93 and 8,698.23 is: 12,003.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,771.35 : 21,764.93 = 8,698.23 : x
  2. Step 2: Convert to fraction form
    15,771.35/21,764.93 = 8,698.23/x
  3. Step 3: Cross multiply
    15,771.35x = 21,764.93 × 8,698.23
  4. Step 4: Simplify right side
    15,771.35x = 189,316,323.58
  5. Step 5: Solve for x
    x = 189,316,323.58/15,771.35
  6. Step 6: Final answer
    x = 12,003.82

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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.