Home / 15,985.56-23,986.45-10,780.50

Finding the Fourth Proportional to 15,985.56, 23,986.45 and 10,780.50

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Solution

The fourth proportional to 15,985.56, 23,986.45 and 10,780.50 is: 16,176.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,985.56 : 23,986.45 = 10,780.50 : x
  2. Step 2: Convert to fraction form
    15,985.56/23,986.45 = 10,780.50/x
  3. Step 3: Cross multiply
    15,985.56x = 23,986.45 × 10,780.50
  4. Step 4: Simplify right side
    15,985.56x = 258,585,924.23
  5. Step 5: Solve for x
    x = 258,585,924.23/15,985.56
  6. Step 6: Final answer
    x = 16,176.22

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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.