Home / 8,375.40-11,554.65-5,186.43

Finding the Fourth Proportional to 8,375.40, 11,554.65 and 5,186.43

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Solution

The fourth proportional to 8,375.40, 11,554.65 and 5,186.43 is: 7,155.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,375.40 : 11,554.65 = 5,186.43 : x
  2. Step 2: Convert to fraction form
    8,375.40/11,554.65 = 5,186.43/x
  3. Step 3: Cross multiply
    8,375.40x = 11,554.65 × 5,186.43
  4. Step 4: Simplify right side
    8,375.40x = 59,927,383.40
  5. Step 5: Solve for x
    x = 59,927,383.40/8,375.40
  6. Step 6: Final answer
    x = 7,155.17

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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.