Home / 12,918.84-17,828.00-7,545.00

Finding the Fourth Proportional to 12,918.84, 17,828.00 and 7,545.00

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Solution

The fourth proportional to 12,918.84, 17,828.00 and 7,545.00 is: 10,412.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,918.84 : 17,828.00 = 7,545.00 : x
  2. Step 2: Convert to fraction form
    12,918.84/17,828.00 = 7,545.00/x
  3. Step 3: Cross multiply
    12,918.84x = 17,828.00 × 7,545.00
  4. Step 4: Simplify right side
    12,918.84x = 134,512,217.14
  5. Step 5: Solve for x
    x = 134,512,217.14/12,918.84
  6. Step 6: Final answer
    x = 10,412.10

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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.