Home / 13,914.84-20,872.28-4,687.32

Finding the Fourth Proportional to 13,914.84, 20,872.28 and 4,687.32

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Solution

The fourth proportional to 13,914.84, 20,872.28 and 4,687.32 is: 7,030.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,914.84 : 20,872.28 = 4,687.32 : x
  2. Step 2: Convert to fraction form
    13,914.84/20,872.28 = 4,687.32/x
  3. Step 3: Cross multiply
    13,914.84x = 20,872.28 × 4,687.32
  4. Step 4: Simplify right side
    13,914.84x = 97,835,055.49
  5. Step 5: Solve for x
    x = 97,835,055.49/13,914.84
  6. Step 6: Final answer
    x = 7,030.99

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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.