Home / 14,069.80-21,108.93-4,209.40

Finding the Fourth Proportional to 14,069.80, 21,108.93 and 4,209.40

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Solution

The fourth proportional to 14,069.80, 21,108.93 and 4,209.40 is: 6,315.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,069.80 : 21,108.93 = 4,209.40 : x
  2. Step 2: Convert to fraction form
    14,069.80/21,108.93 = 4,209.40/x
  3. Step 3: Cross multiply
    14,069.80x = 21,108.93 × 4,209.40
  4. Step 4: Simplify right side
    14,069.80x = 88,855,929.94
  5. Step 5: Solve for x
    x = 88,855,929.94/14,069.80
  6. Step 6: Final answer
    x = 6,315.37

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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.