Home / 14,286.81-21,430.68-4,426.18

Finding the Fourth Proportional to 14,286.81, 21,430.68 and 4,426.18

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Solution

The fourth proportional to 14,286.81, 21,430.68 and 4,426.18 is: 6,639.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,286.81 : 21,430.68 = 4,426.18 : x
  2. Step 2: Convert to fraction form
    14,286.81/21,430.68 = 4,426.18/x
  3. Step 3: Cross multiply
    14,286.81x = 21,430.68 × 4,426.18
  4. Step 4: Simplify right side
    14,286.81x = 94,855,977.03
  5. Step 5: Solve for x
    x = 94,855,977.03/14,286.81
  6. Step 6: Final answer
    x = 6,639.41

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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.