Home / 13,918.15-19,207.07-7,544.78

Finding the Fourth Proportional to 13,918.15, 19,207.07 and 7,544.78

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Solution

The fourth proportional to 13,918.15, 19,207.07 and 7,544.78 is: 10,411.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,918.15 : 19,207.07 = 7,544.78 : x
  2. Step 2: Convert to fraction form
    13,918.15/19,207.07 = 7,544.78/x
  3. Step 3: Cross multiply
    13,918.15x = 19,207.07 × 7,544.78
  4. Step 4: Simplify right side
    13,918.15x = 144,913,117.59
  5. Step 5: Solve for x
    x = 144,913,117.59/13,918.15
  6. Step 6: Final answer
    x = 10,411.81

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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.