Home / 15,933.29-21,985.98-8,762.03

Finding the Fourth Proportional to 15,933.29, 21,985.98 and 8,762.03

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Solution

The fourth proportional to 15,933.29, 21,985.98 and 8,762.03 is: 12,090.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,933.29 : 21,985.98 = 8,762.03 : x
  2. Step 2: Convert to fraction form
    15,933.29/21,985.98 = 8,762.03/x
  3. Step 3: Cross multiply
    15,933.29x = 21,985.98 × 8,762.03
  4. Step 4: Simplify right side
    15,933.29x = 192,641,706.41
  5. Step 5: Solve for x
    x = 192,641,706.41/15,933.29
  6. Step 6: Final answer
    x = 12,090.52

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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.