Home / 14,220.84-19,650.83-13,538.01

Finding the Fourth Proportional to 14,220.84, 19,650.83 and 13,538.01

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Solution

The fourth proportional to 14,220.84, 19,650.83 and 13,538.01 is: 18,707.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,220.84 : 19,650.83 = 13,538.01 : x
  2. Step 2: Convert to fraction form
    14,220.84/19,650.83 = 13,538.01/x
  3. Step 3: Cross multiply
    14,220.84x = 19,650.83 × 13,538.01
  4. Step 4: Simplify right side
    14,220.84x = 266,033,065.36
  5. Step 5: Solve for x
    x = 266,033,065.36/14,220.84
  6. Step 6: Final answer
    x = 18,707.27

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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.