Home / 13,939.81-19,236.36-7,652.32

Finding the Fourth Proportional to 13,939.81, 19,236.36 and 7,652.32

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Solution

The fourth proportional to 13,939.81, 19,236.36 and 7,652.32 is: 10,559.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,939.81 : 19,236.36 = 7,652.32 : x
  2. Step 2: Convert to fraction form
    13,939.81/19,236.36 = 7,652.32/x
  3. Step 3: Cross multiply
    13,939.81x = 19,236.36 × 7,652.32
  4. Step 4: Simplify right side
    13,939.81x = 147,202,782.36
  5. Step 5: Solve for x
    x = 147,202,782.36/13,939.81
  6. Step 6: Final answer
    x = 10,559.88

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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.