Home / 10,994.63-15,172.86-6,278.81

Finding the Fourth Proportional to 10,994.63, 15,172.86 and 6,278.81

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Solution

The fourth proportional to 10,994.63, 15,172.86 and 6,278.81 is: 8,664.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,994.63 : 15,172.86 = 6,278.81 : x
  2. Step 2: Convert to fraction form
    10,994.63/15,172.86 = 6,278.81/x
  3. Step 3: Cross multiply
    10,994.63x = 15,172.86 × 6,278.81
  4. Step 4: Simplify right side
    10,994.63x = 95,267,429.23
  5. Step 5: Solve for x
    x = 95,267,429.23/10,994.63
  6. Step 6: Final answer
    x = 8,664.91

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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.