Home / 14,145.42-21,223.60-4,284.79

Finding the Fourth Proportional to 14,145.42, 21,223.60 and 4,284.79

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Solution

The fourth proportional to 14,145.42, 21,223.60 and 4,284.79 is: 6,428.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,145.42 : 21,223.60 = 4,284.79 : x
  2. Step 2: Convert to fraction form
    14,145.42/21,223.60 = 4,284.79/x
  3. Step 3: Cross multiply
    14,145.42x = 21,223.60 × 4,284.79
  4. Step 4: Simplify right side
    14,145.42x = 90,938,669.04
  5. Step 5: Solve for x
    x = 90,938,669.04/14,145.42
  6. Step 6: Final answer
    x = 6,428.84

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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.