Home / 13,450.95-20,139.48-10,154.07

Finding the Fourth Proportional to 13,450.95, 20,139.48 and 10,154.07

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Solution

The fourth proportional to 13,450.95, 20,139.48 and 10,154.07 is: 15,203.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,450.95 : 20,139.48 = 10,154.07 : x
  2. Step 2: Convert to fraction form
    13,450.95/20,139.48 = 10,154.07/x
  3. Step 3: Cross multiply
    13,450.95x = 20,139.48 × 10,154.07
  4. Step 4: Simplify right side
    13,450.95x = 204,497,689.68
  5. Step 5: Solve for x
    x = 204,497,689.68/13,450.95
  6. Step 6: Final answer
    x = 15,203.22

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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.