Home / 18,300.11-27,429.26-8,312.48

Finding the Fourth Proportional to 18,300.11, 27,429.26 and 8,312.48

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Solution

The fourth proportional to 18,300.11, 27,429.26 and 8,312.48 is: 12,459.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,300.11 : 27,429.26 = 8,312.48 : x
  2. Step 2: Convert to fraction form
    18,300.11/27,429.26 = 8,312.48/x
  3. Step 3: Cross multiply
    18,300.11x = 27,429.26 × 8,312.48
  4. Step 4: Simplify right side
    18,300.11x = 228,004,996.46
  5. Step 5: Solve for x
    x = 228,004,996.46/18,300.11
  6. Step 6: Final answer
    x = 12,459.21

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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.