Home / 13,888.32-19,118.88-10,738.56

Finding the Fourth Proportional to 13,888.32, 19,118.88 and 10,738.56

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Solution

The fourth proportional to 13,888.32, 19,118.88 and 10,738.56 is: 14,782.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,888.32 : 19,118.88 = 10,738.56 : x
  2. Step 2: Convert to fraction form
    13,888.32/19,118.88 = 10,738.56/x
  3. Step 3: Cross multiply
    13,888.32x = 19,118.88 × 10,738.56
  4. Step 4: Simplify right side
    13,888.32x = 205,309,240.01
  5. Step 5: Solve for x
    x = 205,309,240.01/13,888.32
  6. Step 6: Final answer
    x = 14,782.87

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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.