Home / 11,875.40-17,812.92-4,853.88

Finding the Fourth Proportional to 11,875.40, 17,812.92 and 4,853.88

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Solution

The fourth proportional to 11,875.40, 17,812.92 and 4,853.88 is: 7,280.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,875.40 : 17,812.92 = 4,853.88 : x
  2. Step 2: Convert to fraction form
    11,875.40/17,812.92 = 4,853.88/x
  3. Step 3: Cross multiply
    11,875.40x = 17,812.92 × 4,853.88
  4. Step 4: Simplify right side
    11,875.40x = 86,461,776.13
  5. Step 5: Solve for x
    x = 86,461,776.13/11,875.40
  6. Step 6: Final answer
    x = 7,280.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.