Home / 13,076.08-18,048.16-7,490.32

Finding the Fourth Proportional to 13,076.08, 18,048.16 and 7,490.32

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Solution

The fourth proportional to 13,076.08, 18,048.16 and 7,490.32 is: 10,338.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,076.08 : 18,048.16 = 7,490.32 : x
  2. Step 2: Convert to fraction form
    13,076.08/18,048.16 = 7,490.32/x
  3. Step 3: Cross multiply
    13,076.08x = 18,048.16 × 7,490.32
  4. Step 4: Simplify right side
    13,076.08x = 135,186,493.81
  5. Step 5: Solve for x
    x = 135,186,493.81/13,076.08
  6. Step 6: Final answer
    x = 10,338.46

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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.