Home / 13,918.64-19,207.80-7,545.28

Finding the Fourth Proportional to 13,918.64, 19,207.80 and 7,545.28

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Solution

The fourth proportional to 13,918.64, 19,207.80 and 7,545.28 is: 10,412.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,918.64 : 19,207.80 = 7,545.28 : x
  2. Step 2: Convert to fraction form
    13,918.64/19,207.80 = 7,545.28/x
  3. Step 3: Cross multiply
    13,918.64x = 19,207.80 × 7,545.28
  4. Step 4: Simplify right side
    13,918.64x = 144,928,229.18
  5. Step 5: Solve for x
    x = 144,928,229.18/13,918.64
  6. Step 6: Final answer
    x = 10,412.53

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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.