Home / 19,472.32-26,856.93-13,105.72

Finding the Fourth Proportional to 19,472.32, 26,856.93 and 13,105.72

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Solution

The fourth proportional to 19,472.32, 26,856.93 and 13,105.72 is: 18,075.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,472.32 : 26,856.93 = 13,105.72 : x
  2. Step 2: Convert to fraction form
    19,472.32/26,856.93 = 13,105.72/x
  3. Step 3: Cross multiply
    19,472.32x = 26,856.93 × 13,105.72
  4. Step 4: Simplify right side
    19,472.32x = 351,979,404.64
  5. Step 5: Solve for x
    x = 351,979,404.64/19,472.32
  6. Step 6: Final answer
    x = 18,075.88

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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.