Home / 10,421.79-14,379.75-6,170.73

Finding the Fourth Proportional to 10,421.79, 14,379.75 and 6,170.73

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Solution

The fourth proportional to 10,421.79, 14,379.75 and 6,170.73 is: 8,514.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,421.79 : 14,379.75 = 6,170.73 : x
  2. Step 2: Convert to fraction form
    10,421.79/14,379.75 = 6,170.73/x
  3. Step 3: Cross multiply
    10,421.79x = 14,379.75 × 6,170.73
  4. Step 4: Simplify right side
    10,421.79x = 88,733,554.72
  5. Step 5: Solve for x
    x = 88,733,554.72/10,421.79
  6. Step 6: Final answer
    x = 8,514.23

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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.