Home / 18,376.51-25,359.45-9,993.01

Finding the Fourth Proportional to 18,376.51, 25,359.45 and 9,993.01

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Solution

The fourth proportional to 18,376.51, 25,359.45 and 9,993.01 is: 13,790.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,376.51 : 25,359.45 = 9,993.01 : x
  2. Step 2: Convert to fraction form
    18,376.51/25,359.45 = 9,993.01/x
  3. Step 3: Cross multiply
    18,376.51x = 25,359.45 × 9,993.01
  4. Step 4: Simplify right side
    18,376.51x = 253,417,237.44
  5. Step 5: Solve for x
    x = 253,417,237.44/18,376.51
  6. Step 6: Final answer
    x = 13,790.28

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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.