Home / 13,206.60-18,222.57-7,616.52

Finding the Fourth Proportional to 13,206.60, 18,222.57 and 7,616.52

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Solution

The fourth proportional to 13,206.60, 18,222.57 and 7,616.52 is: 10,509.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206.60 : 18,222.57 = 7,616.52 : x
  2. Step 2: Convert to fraction form
    13,206.60/18,222.57 = 7,616.52/x
  3. Step 3: Cross multiply
    13,206.60x = 18,222.57 × 7,616.52
  4. Step 4: Simplify right side
    13,206.60x = 138,792,568.86
  5. Step 5: Solve for x
    x = 138,792,568.86/13,206.60
  6. Step 6: Final answer
    x = 10,509.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.