Home / 13,955.12-19,277.16-11,335.04

Finding the Fourth Proportional to 13,955.12, 19,277.16 and 11,335.04

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Solution

The fourth proportional to 13,955.12, 19,277.16 and 11,335.04 is: 15,657.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,955.12 : 19,277.16 = 11,335.04 : x
  2. Step 2: Convert to fraction form
    13,955.12/19,277.16 = 11,335.04/x
  3. Step 3: Cross multiply
    13,955.12x = 19,277.16 × 11,335.04
  4. Step 4: Simplify right side
    13,955.12x = 218,507,379.69
  5. Step 5: Solve for x
    x = 218,507,379.69/13,955.12
  6. Step 6: Final answer
    x = 15,657.86

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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.