Home / 14,019.38-21,018.63-6,619.62

Finding the Fourth Proportional to 14,019.38, 21,018.63 and 6,619.62

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Solution

The fourth proportional to 14,019.38, 21,018.63 and 6,619.62 is: 9,924.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,019.38 : 21,018.63 = 6,619.62 : x
  2. Step 2: Convert to fraction form
    14,019.38/21,018.63 = 6,619.62/x
  3. Step 3: Cross multiply
    14,019.38x = 21,018.63 × 6,619.62
  4. Step 4: Simplify right side
    14,019.38x = 139,135,343.52
  5. Step 5: Solve for x
    x = 139,135,343.52/14,019.38
  6. Step 6: Final answer
    x = 9,924.50

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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.