Home / 13,453.76-20,180.76-4,688.72

Finding the Fourth Proportional to 13,453.76, 20,180.76 and 4,688.72

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Solution

The fourth proportional to 13,453.76, 20,180.76 and 4,688.72 is: 7,033.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,453.76 : 20,180.76 = 4,688.72 : x
  2. Step 2: Convert to fraction form
    13,453.76/20,180.76 = 4,688.72/x
  3. Step 3: Cross multiply
    13,453.76x = 20,180.76 × 4,688.72
  4. Step 4: Simplify right side
    13,453.76x = 94,621,933.03
  5. Step 5: Solve for x
    x = 94,621,933.03/13,453.76
  6. Step 6: Final answer
    x = 7,033.12

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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.