Home / 13,652.39-20,483.60-5,756.90

Finding the Fourth Proportional to 13,652.39, 20,483.60 and 5,756.90

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Solution

The fourth proportional to 13,652.39, 20,483.60 and 5,756.90 is: 8,637.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,652.39 : 20,483.60 = 5,756.90 : x
  2. Step 2: Convert to fraction form
    13,652.39/20,483.60 = 5,756.90/x
  3. Step 3: Cross multiply
    13,652.39x = 20,483.60 × 5,756.90
  4. Step 4: Simplify right side
    13,652.39x = 117,921,905.64
  5. Step 5: Solve for x
    x = 117,921,905.64/13,652.39
  6. Step 6: Final answer
    x = 8,637.45

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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.