Home / 19,378.72-26,742.66-10,995.76

Finding the Fourth Proportional to 19,378.72, 26,742.66 and 10,995.76

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Solution

The fourth proportional to 19,378.72, 26,742.66 and 10,995.76 is: 15,174.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,378.72 : 26,742.66 = 10,995.76 : x
  2. Step 2: Convert to fraction form
    19,378.72/26,742.66 = 10,995.76/x
  3. Step 3: Cross multiply
    19,378.72x = 26,742.66 × 10,995.76
  4. Step 4: Simplify right side
    19,378.72x = 294,055,871.12
  5. Step 5: Solve for x
    x = 294,055,871.12/19,378.72
  6. Step 6: Final answer
    x = 15,174.16

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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.