Home / 7,981.12-11,014.14-4,623.94

Finding the Fourth Proportional to 7,981.12, 11,014.14 and 4,623.94

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Solution

The fourth proportional to 7,981.12, 11,014.14 and 4,623.94 is: 6,381.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981.12 : 11,014.14 = 4,623.94 : x
  2. Step 2: Convert to fraction form
    7,981.12/11,014.14 = 4,623.94/x
  3. Step 3: Cross multiply
    7,981.12x = 11,014.14 × 4,623.94
  4. Step 4: Simplify right side
    7,981.12x = 50,928,722.51
  5. Step 5: Solve for x
    x = 50,928,722.51/7,981.12
  6. Step 6: Final answer
    x = 6,381.15

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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.