Home / 19,907.12-27,471.96-10,955.20

Finding the Fourth Proportional to 19,907.12, 27,471.96 and 10,955.20

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Solution

The fourth proportional to 19,907.12, 27,471.96 and 10,955.20 is: 15,118.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,907.12 : 27,471.96 = 10,955.20 : x
  2. Step 2: Convert to fraction form
    19,907.12/27,471.96 = 10,955.20/x
  3. Step 3: Cross multiply
    19,907.12x = 27,471.96 × 10,955.20
  4. Step 4: Simplify right side
    19,907.12x = 300,960,816.19
  5. Step 5: Solve for x
    x = 300,960,816.19/19,907.12
  6. Step 6: Final answer
    x = 15,118.25

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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.