Home / 12,450.51-17,158.03-8,907.57

Finding the Fourth Proportional to 12,450.51, 17,158.03 and 8,907.57

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Solution

The fourth proportional to 12,450.51, 17,158.03 and 8,907.57 is: 12,275.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,450.51 : 17,158.03 = 8,907.57 : x
  2. Step 2: Convert to fraction form
    12,450.51/17,158.03 = 8,907.57/x
  3. Step 3: Cross multiply
    12,450.51x = 17,158.03 × 8,907.57
  4. Step 4: Simplify right side
    12,450.51x = 152,836,331.02
  5. Step 5: Solve for x
    x = 152,836,331.02/12,450.51
  6. Step 6: Final answer
    x = 12,275.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.