Home / 14,121.05-21,184.62-4,259.51

Finding the Fourth Proportional to 14,121.05, 21,184.62 and 4,259.51

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Solution

The fourth proportional to 14,121.05, 21,184.62 and 4,259.51 is: 6,390.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.05 : 21,184.62 = 4,259.51 : x
  2. Step 2: Convert to fraction form
    14,121.05/21,184.62 = 4,259.51/x
  3. Step 3: Cross multiply
    14,121.05x = 21,184.62 × 4,259.51
  4. Step 4: Simplify right side
    14,121.05x = 90,235,973.52
  5. Step 5: Solve for x
    x = 90,235,973.52/14,121.05
  6. Step 6: Final answer
    x = 6,390.17

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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.