Home / 14,209.57-21,288.81-8,362.99

Finding the Fourth Proportional to 14,209.57, 21,288.81 and 8,362.99

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Solution

The fourth proportional to 14,209.57, 21,288.81 and 8,362.99 is: 12,529.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,209.57 : 21,288.81 = 8,362.99 : x
  2. Step 2: Convert to fraction form
    14,209.57/21,288.81 = 8,362.99/x
  3. Step 3: Cross multiply
    14,209.57x = 21,288.81 × 8,362.99
  4. Step 4: Simplify right side
    14,209.57x = 178,038,051.92
  5. Step 5: Solve for x
    x = 178,038,051.92/14,209.57
  6. Step 6: Final answer
    x = 12,529.45

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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.