Home / 13,549.15-20,323.98-3,688.68

Finding the Fourth Proportional to 13,549.15, 20,323.98 and 3,688.68

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Solution

The fourth proportional to 13,549.15, 20,323.98 and 3,688.68 is: 5,533.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,549.15 : 20,323.98 = 3,688.68 : x
  2. Step 2: Convert to fraction form
    13,549.15/20,323.98 = 3,688.68/x
  3. Step 3: Cross multiply
    13,549.15x = 20,323.98 × 3,688.68
  4. Step 4: Simplify right side
    13,549.15x = 74,968,716.58
  5. Step 5: Solve for x
    x = 74,968,716.58/13,549.15
  6. Step 6: Final answer
    x = 5,533.09

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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.