Home / 12,482.57-17,220.60-7,176.26

Finding the Fourth Proportional to 12,482.57, 17,220.60 and 7,176.26

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Solution

The fourth proportional to 12,482.57, 17,220.60 and 7,176.26 is: 9,900.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482.57 : 17,220.60 = 7,176.26 : x
  2. Step 2: Convert to fraction form
    12,482.57/17,220.60 = 7,176.26/x
  3. Step 3: Cross multiply
    12,482.57x = 17,220.60 × 7,176.26
  4. Step 4: Simplify right side
    12,482.57x = 123,579,546.01
  5. Step 5: Solve for x
    x = 123,579,546.01/12,482.57
  6. Step 6: Final answer
    x = 9,900.17

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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.