Home / 12,402.17-18,628.43-10,954.20

Finding the Fourth Proportional to 12,402.17, 18,628.43 and 10,954.20

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Solution

The fourth proportional to 12,402.17, 18,628.43 and 10,954.20 is: 16,453.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,402.17 : 18,628.43 = 10,954.20 : x
  2. Step 2: Convert to fraction form
    12,402.17/18,628.43 = 10,954.20/x
  3. Step 3: Cross multiply
    12,402.17x = 18,628.43 × 10,954.20
  4. Step 4: Simplify right side
    12,402.17x = 204,059,547.91
  5. Step 5: Solve for x
    x = 204,059,547.91/12,402.17
  6. Step 6: Final answer
    x = 16,453.54

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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.