Home / 14,631.60-20,191.77-7,917.36

Finding the Fourth Proportional to 14,631.60, 20,191.77 and 7,917.36

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Solution

The fourth proportional to 14,631.60, 20,191.77 and 7,917.36 is: 10,926.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,631.60 : 20,191.77 = 7,917.36 : x
  2. Step 2: Convert to fraction form
    14,631.60/20,191.77 = 7,917.36/x
  3. Step 3: Cross multiply
    14,631.60x = 20,191.77 × 7,917.36
  4. Step 4: Simplify right side
    14,631.60x = 159,865,406.72
  5. Step 5: Solve for x
    x = 159,865,406.72/14,631.60
  6. Step 6: Final answer
    x = 10,926.04

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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.