Home / 10,120.12-13,974.06-6,970.84

Finding the Fourth Proportional to 10,120.12, 13,974.06 and 6,970.84

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Solution

The fourth proportional to 10,120.12, 13,974.06 and 6,970.84 is: 9,625.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120.12 : 13,974.06 = 6,970.84 : x
  2. Step 2: Convert to fraction form
    10,120.12/13,974.06 = 6,970.84/x
  3. Step 3: Cross multiply
    10,120.12x = 13,974.06 × 6,970.84
  4. Step 4: Simplify right side
    10,120.12x = 97,410,936.41
  5. Step 5: Solve for x
    x = 97,410,936.41/10,120.12
  6. Step 6: Final answer
    x = 9,625.47

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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.