Home / 14,685.42-20,265.91-8,397.80

Finding the Fourth Proportional to 14,685.42, 20,265.91 and 8,397.80

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Solution

The fourth proportional to 14,685.42, 20,265.91 and 8,397.80 is: 11,588.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,685.42 : 20,265.91 = 8,397.80 : x
  2. Step 2: Convert to fraction form
    14,685.42/20,265.91 = 8,397.80/x
  3. Step 3: Cross multiply
    14,685.42x = 20,265.91 × 8,397.80
  4. Step 4: Simplify right side
    14,685.42x = 170,189,059.00
  5. Step 5: Solve for x
    x = 170,189,059.00/14,685.42
  6. Step 6: Final answer
    x = 11,588.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.