Home / 13,994.06-20,985.39-6,971.51

Finding the Fourth Proportional to 13,994.06, 20,985.39 and 6,971.51

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Solution

The fourth proportional to 13,994.06, 20,985.39 and 6,971.51 is: 10,454.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,994.06 : 20,985.39 = 6,971.51 : x
  2. Step 2: Convert to fraction form
    13,994.06/20,985.39 = 6,971.51/x
  3. Step 3: Cross multiply
    13,994.06x = 20,985.39 × 6,971.51
  4. Step 4: Simplify right side
    13,994.06x = 146,299,908.70
  5. Step 5: Solve for x
    x = 146,299,908.70/13,994.06
  6. Step 6: Final answer
    x = 10,454.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.