Home / 14,087.21-19,440.60-7,713.81

Finding the Fourth Proportional to 14,087.21, 19,440.60 and 7,713.81

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Solution

The fourth proportional to 14,087.21, 19,440.60 and 7,713.81 is: 10,645.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,087.21 : 19,440.60 = 7,713.81 : x
  2. Step 2: Convert to fraction form
    14,087.21/19,440.60 = 7,713.81/x
  3. Step 3: Cross multiply
    14,087.21x = 19,440.60 × 7,713.81
  4. Step 4: Simplify right side
    14,087.21x = 149,961,056.12
  5. Step 5: Solve for x
    x = 149,961,056.12/14,087.21
  6. Step 6: Final answer
    x = 10,645.20

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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.