Home / 19,907.77-27,472.82-10,955.05

Finding the Fourth Proportional to 19,907.77, 27,472.82 and 10,955.05

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Solution

The fourth proportional to 19,907.77, 27,472.82 and 10,955.05 is: 15,118.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,907.77 : 27,472.82 = 10,955.05 : x
  2. Step 2: Convert to fraction form
    19,907.77/27,472.82 = 10,955.05/x
  3. Step 3: Cross multiply
    19,907.77x = 27,472.82 × 10,955.05
  4. Step 4: Simplify right side
    19,907.77x = 300,966,116.74
  5. Step 5: Solve for x
    x = 300,966,116.74/19,907.77
  6. Step 6: Final answer
    x = 15,118.02

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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.