Home / 13,160.82-18,162.18-7,192.32

Finding the Fourth Proportional to 13,160.82, 18,162.18 and 7,192.32

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Solution

The fourth proportional to 13,160.82, 18,162.18 and 7,192.32 is: 9,925.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,160.82 : 18,162.18 = 7,192.32 : x
  2. Step 2: Convert to fraction form
    13,160.82/18,162.18 = 7,192.32/x
  3. Step 3: Cross multiply
    13,160.82x = 18,162.18 × 7,192.32
  4. Step 4: Simplify right side
    13,160.82x = 130,628,210.46
  5. Step 5: Solve for x
    x = 130,628,210.46/13,160.82
  6. Step 6: Final answer
    x = 9,925.54

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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.