Home / 14,118.12-21,203.51-12,430.11

Finding the Fourth Proportional to 14,118.12, 21,203.51 and 12,430.11

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Solution

The fourth proportional to 14,118.12, 21,203.51 and 12,430.11 is: 18,668.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,118.12 : 21,203.51 = 12,430.11 : x
  2. Step 2: Convert to fraction form
    14,118.12/21,203.51 = 12,430.11/x
  3. Step 3: Cross multiply
    14,118.12x = 21,203.51 × 12,430.11
  4. Step 4: Simplify right side
    14,118.12x = 263,561,961.69
  5. Step 5: Solve for x
    x = 263,561,961.69/14,118.12
  6. Step 6: Final answer
    x = 18,668.35

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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.