Home / 19,121.84-26,390.40-10,738.32

Finding the Fourth Proportional to 19,121.84, 26,390.40 and 10,738.32

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Solution

The fourth proportional to 19,121.84, 26,390.40 and 10,738.32 is: 14,820.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,121.84 : 26,390.40 = 10,738.32 : x
  2. Step 2: Convert to fraction form
    19,121.84/26,390.40 = 10,738.32/x
  3. Step 3: Cross multiply
    19,121.84x = 26,390.40 × 10,738.32
  4. Step 4: Simplify right side
    19,121.84x = 283,388,560.13
  5. Step 5: Solve for x
    x = 283,388,560.13/19,121.84
  6. Step 6: Final answer
    x = 14,820.15

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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.