Home / 13,629.79-20,444.69-7,512.67

Finding the Fourth Proportional to 13,629.79, 20,444.69 and 7,512.67

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Solution

The fourth proportional to 13,629.79, 20,444.69 and 7,512.67 is: 11,269.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,629.79 : 20,444.69 = 7,512.67 : x
  2. Step 2: Convert to fraction form
    13,629.79/20,444.69 = 7,512.67/x
  3. Step 3: Cross multiply
    13,629.79x = 20,444.69 × 7,512.67
  4. Step 4: Simplify right side
    13,629.79x = 153,594,209.22
  5. Step 5: Solve for x
    x = 153,594,209.22/13,629.79
  6. Step 6: Final answer
    x = 11,269.01

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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.