Home / 13,600.41-18,768.90-7,632.55

Finding the Fourth Proportional to 13,600.41, 18,768.90 and 7,632.55

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Solution

The fourth proportional to 13,600.41, 18,768.90 and 7,632.55 is: 10,533.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,600.41 : 18,768.90 = 7,632.55 : x
  2. Step 2: Convert to fraction form
    13,600.41/18,768.90 = 7,632.55/x
  3. Step 3: Cross multiply
    13,600.41x = 18,768.90 × 7,632.55
  4. Step 4: Simplify right side
    13,600.41x = 143,254,567.70
  5. Step 5: Solve for x
    x = 143,254,567.70/13,600.41
  6. Step 6: Final answer
    x = 10,533.11

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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.