Home / 14,208.89-21,308.20-4,210.65

Finding the Fourth Proportional to 14,208.89, 21,308.20 and 4,210.65

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Solution

The fourth proportional to 14,208.89, 21,308.20 and 4,210.65 is: 6,314.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,208.89 : 21,308.20 = 4,210.65 : x
  2. Step 2: Convert to fraction form
    14,208.89/21,308.20 = 4,210.65/x
  3. Step 3: Cross multiply
    14,208.89x = 21,308.20 × 4,210.65
  4. Step 4: Simplify right side
    14,208.89x = 89,721,361.80
  5. Step 5: Solve for x
    x = 89,721,361.80/14,208.89
  6. Step 6: Final answer
    x = 6,314.45

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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.