Home / 12,341.42-18,513.12-4,021.28

Finding the Fourth Proportional to 12,341.42, 18,513.12 and 4,021.28

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Solution

The fourth proportional to 12,341.42, 18,513.12 and 4,021.28 is: 6,032.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,341.42 : 18,513.12 = 4,021.28 : x
  2. Step 2: Convert to fraction form
    12,341.42/18,513.12 = 4,021.28/x
  3. Step 3: Cross multiply
    12,341.42x = 18,513.12 × 4,021.28
  4. Step 4: Simplify right side
    12,341.42x = 74,446,439.19
  5. Step 5: Solve for x
    x = 74,446,439.19/12,341.42
  6. Step 6: Final answer
    x = 6,032.24

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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.