Home / 14,287.91-21,445.69-6,897.57

Finding the Fourth Proportional to 14,287.91, 21,445.69 and 6,897.57

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Solution

The fourth proportional to 14,287.91, 21,445.69 and 6,897.57 is: 10,353.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,287.91 : 21,445.69 = 6,897.57 : x
  2. Step 2: Convert to fraction form
    14,287.91/21,445.69 = 6,897.57/x
  3. Step 3: Cross multiply
    14,287.91x = 21,445.69 × 6,897.57
  4. Step 4: Simplify right side
    14,287.91x = 147,923,147.97
  5. Step 5: Solve for x
    x = 147,923,147.97/14,287.91
  6. Step 6: Final answer
    x = 10,353.03

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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.