Home / 13,155.66-18,152.30-7,850.97

Finding the Fourth Proportional to 13,155.66, 18,152.30 and 7,850.97

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Solution

The fourth proportional to 13,155.66, 18,152.30 and 7,850.97 is: 10,832.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,155.66 : 18,152.30 = 7,850.97 : x
  2. Step 2: Convert to fraction form
    13,155.66/18,152.30 = 7,850.97/x
  3. Step 3: Cross multiply
    13,155.66x = 18,152.30 × 7,850.97
  4. Step 4: Simplify right side
    13,155.66x = 142,513,182.36
  5. Step 5: Solve for x
    x = 142,513,182.36/13,155.66
  6. Step 6: Final answer
    x = 10,832.84

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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.