Home / 14,905.60-20,584.40-13,505.92

Finding the Fourth Proportional to 14,905.60, 20,584.40 and 13,505.92

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Solution

The fourth proportional to 14,905.60, 20,584.40 and 13,505.92 is: 18,651.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,905.60 : 20,584.40 = 13,505.92 : x
  2. Step 2: Convert to fraction form
    14,905.60/20,584.40 = 13,505.92/x
  3. Step 3: Cross multiply
    14,905.60x = 20,584.40 × 13,505.92
  4. Step 4: Simplify right side
    14,905.60x = 278,011,259.65
  5. Step 5: Solve for x
    x = 278,011,259.65/14,905.60
  6. Step 6: Final answer
    x = 18,651.46

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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.