Home / 19,383.56-26,742.30-10,995.20

Finding the Fourth Proportional to 19,383.56, 26,742.30 and 10,995.20

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Solution

The fourth proportional to 19,383.56, 26,742.30 and 10,995.20 is: 15,169.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,383.56 : 26,742.30 = 10,995.20 : x
  2. Step 2: Convert to fraction form
    19,383.56/26,742.30 = 10,995.20/x
  3. Step 3: Cross multiply
    19,383.56x = 26,742.30 × 10,995.20
  4. Step 4: Simplify right side
    19,383.56x = 294,036,803.25
  5. Step 5: Solve for x
    x = 294,036,803.25/19,383.56
  6. Step 6: Final answer
    x = 15,169.40

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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.