Home / 14,461.31-21,686.49-7,883.92

Finding the Fourth Proportional to 14,461.31, 21,686.49 and 7,883.92

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Solution

The fourth proportional to 14,461.31, 21,686.49 and 7,883.92 is: 11,822.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,461.31 : 21,686.49 = 7,883.92 : x
  2. Step 2: Convert to fraction form
    14,461.31/21,686.49 = 7,883.92/x
  3. Step 3: Cross multiply
    14,461.31x = 21,686.49 × 7,883.92
  4. Step 4: Simplify right side
    14,461.31x = 170,974,443.81
  5. Step 5: Solve for x
    x = 170,974,443.81/14,461.31
  6. Step 6: Final answer
    x = 11,822.89

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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.