Home / 19,710.12-27,202.26-11,215.32

Finding the Fourth Proportional to 19,710.12, 27,202.26 and 11,215.32

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Solution

The fourth proportional to 19,710.12, 27,202.26 and 11,215.32 is: 15,478.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,710.12 : 27,202.26 = 11,215.32 : x
  2. Step 2: Convert to fraction form
    19,710.12/27,202.26 = 11,215.32/x
  3. Step 3: Cross multiply
    19,710.12x = 27,202.26 × 11,215.32
  4. Step 4: Simplify right side
    19,710.12x = 305,082,050.62
  5. Step 5: Solve for x
    x = 305,082,050.62/19,710.12
  6. Step 6: Final answer
    x = 15,478.45

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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.