Home / 14,291.40-21,420.54-8,452.92

Finding the Fourth Proportional to 14,291.40, 21,420.54 and 8,452.92

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Solution

The fourth proportional to 14,291.40, 21,420.54 and 8,452.92 is: 12,669.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,291.40 : 21,420.54 = 8,452.92 : x
  2. Step 2: Convert to fraction form
    14,291.40/21,420.54 = 8,452.92/x
  3. Step 3: Cross multiply
    14,291.40x = 21,420.54 × 8,452.92
  4. Step 4: Simplify right side
    14,291.40x = 181,066,110.98
  5. Step 5: Solve for x
    x = 181,066,110.98/14,291.40
  6. Step 6: Final answer
    x = 12,669.59

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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.