Home / 13,475.59-20,215.55-5,685.55

Finding the Fourth Proportional to 13,475.59, 20,215.55 and 5,685.55

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Solution

The fourth proportional to 13,475.59, 20,215.55 and 5,685.55 is: 8,529.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,475.59 : 20,215.55 = 5,685.55 : x
  2. Step 2: Convert to fraction form
    13,475.59/20,215.55 = 5,685.55/x
  3. Step 3: Cross multiply
    13,475.59x = 20,215.55 × 5,685.55
  4. Step 4: Simplify right side
    13,475.59x = 114,936,491.87
  5. Step 5: Solve for x
    x = 114,936,491.87/13,475.59
  6. Step 6: Final answer
    x = 8,529.24

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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.