Home / 13,485.69-20,228.54-4,718.57

Finding the Fourth Proportional to 13,485.69, 20,228.54 and 4,718.57

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Solution

The fourth proportional to 13,485.69, 20,228.54 and 4,718.57 is: 7,077.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,485.69 : 20,228.54 = 4,718.57 : x
  2. Step 2: Convert to fraction form
    13,485.69/20,228.54 = 4,718.57/x
  3. Step 3: Cross multiply
    13,485.69x = 20,228.54 × 4,718.57
  4. Step 4: Simplify right side
    13,485.69x = 95,449,657.25
  5. Step 5: Solve for x
    x = 95,449,657.25/13,485.69
  6. Step 6: Final answer
    x = 7,077.85

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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.