Home / 13,485.47-20,228.25-4,125.45

Finding the Fourth Proportional to 13,485.47, 20,228.25 and 4,125.45

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Solution

The fourth proportional to 13,485.47, 20,228.25 and 4,125.45 is: 6,188.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,485.47 : 20,228.25 = 4,125.45 : x
  2. Step 2: Convert to fraction form
    13,485.47/20,228.25 = 4,125.45/x
  3. Step 3: Cross multiply
    13,485.47x = 20,228.25 × 4,125.45
  4. Step 4: Simplify right side
    13,485.47x = 83,450,633.96
  5. Step 5: Solve for x
    x = 83,450,633.96/13,485.47
  6. Step 6: Final answer
    x = 6,188.19

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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.