Home / 19,713.12-27,206.40-11,218.32

Finding the Fourth Proportional to 19,713.12, 27,206.40 and 11,218.32

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Solution

The fourth proportional to 19,713.12, 27,206.40 and 11,218.32 is: 15,482.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,713.12 : 27,206.40 = 11,218.32 : x
  2. Step 2: Convert to fraction form
    19,713.12/27,206.40 = 11,218.32/x
  3. Step 3: Cross multiply
    19,713.12x = 27,206.40 × 11,218.32
  4. Step 4: Simplify right side
    19,713.12x = 305,210,101.25
  5. Step 5: Solve for x
    x = 305,210,101.25/19,713.12
  6. Step 6: Final answer
    x = 15,482.59

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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.