Home / 14,259.80-21,389.70-12,834.20

Finding the Fourth Proportional to 14,259.80, 21,389.70 and 12,834.20

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Solution

The fourth proportional to 14,259.80, 21,389.70 and 12,834.20 is: 19,251.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,259.80 : 21,389.70 = 12,834.20 : x
  2. Step 2: Convert to fraction form
    14,259.80/21,389.70 = 12,834.20/x
  3. Step 3: Cross multiply
    14,259.80x = 21,389.70 × 12,834.20
  4. Step 4: Simplify right side
    14,259.80x = 274,519,687.74
  5. Step 5: Solve for x
    x = 274,519,687.74/14,259.80
  6. Step 6: Final answer
    x = 19,251.30

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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.