Home / 14,196.12-21,313.02-12,129.41

Finding the Fourth Proportional to 14,196.12, 21,313.02 and 12,129.41

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Solution

The fourth proportional to 14,196.12, 21,313.02 and 12,129.41 is: 18,210.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,196.12 : 21,313.02 = 12,129.41 : x
  2. Step 2: Convert to fraction form
    14,196.12/21,313.02 = 12,129.41/x
  3. Step 3: Cross multiply
    14,196.12x = 21,313.02 × 12,129.41
  4. Step 4: Simplify right side
    14,196.12x = 258,514,251.35
  5. Step 5: Solve for x
    x = 258,514,251.35/14,196.12
  6. Step 6: Final answer
    x = 18,210.20

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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.