Home / 10,215.25-14,087.69-6,626.47

Finding the Fourth Proportional to 10,215.25, 14,087.69 and 6,626.47

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Solution

The fourth proportional to 10,215.25, 14,087.69 and 6,626.47 is: 9,138.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,215.25 : 14,087.69 = 6,626.47 : x
  2. Step 2: Convert to fraction form
    10,215.25/14,087.69 = 6,626.47/x
  3. Step 3: Cross multiply
    10,215.25x = 14,087.69 × 6,626.47
  4. Step 4: Simplify right side
    10,215.25x = 93,351,622.02
  5. Step 5: Solve for x
    x = 93,351,622.02/10,215.25
  6. Step 6: Final answer
    x = 9,138.46

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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.