Home / 12,005.04-18,008.23-3,240.63

Finding the Fourth Proportional to 12,005.04, 18,008.23 and 3,240.63

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Solution

The fourth proportional to 12,005.04, 18,008.23 and 3,240.63 is: 4,861.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,005.04 : 18,008.23 = 3,240.63 : x
  2. Step 2: Convert to fraction form
    12,005.04/18,008.23 = 3,240.63/x
  3. Step 3: Cross multiply
    12,005.04x = 18,008.23 × 3,240.63
  4. Step 4: Simplify right side
    12,005.04x = 58,358,010.38
  5. Step 5: Solve for x
    x = 58,358,010.38/12,005.04
  6. Step 6: Final answer
    x = 4,861.13

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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.