Home / 13,783.28-20,637.65-7,195.55

Finding the Fourth Proportional to 13,783.28, 20,637.65 and 7,195.55

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Solution

The fourth proportional to 13,783.28, 20,637.65 and 7,195.55 is: 10,773.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,783.28 : 20,637.65 = 7,195.55 : x
  2. Step 2: Convert to fraction form
    13,783.28/20,637.65 = 7,195.55/x
  3. Step 3: Cross multiply
    13,783.28x = 20,637.65 × 7,195.55
  4. Step 4: Simplify right side
    13,783.28x = 148,499,157.26
  5. Step 5: Solve for x
    x = 148,499,157.26/13,783.28
  6. Step 6: Final answer
    x = 10,773.87

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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.