Home / 18,143.22-25,024.06-12,090.69

Finding the Fourth Proportional to 18,143.22, 25,024.06 and 12,090.69

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Solution

The fourth proportional to 18,143.22, 25,024.06 and 12,090.69 is: 16,676.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,143.22 : 25,024.06 = 12,090.69 : x
  2. Step 2: Convert to fraction form
    18,143.22/25,024.06 = 12,090.69/x
  3. Step 3: Cross multiply
    18,143.22x = 25,024.06 × 12,090.69
  4. Step 4: Simplify right side
    18,143.22x = 302,558,271.50
  5. Step 5: Solve for x
    x = 302,558,271.50/18,143.22
  6. Step 6: Final answer
    x = 16,676.11

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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.