Home / 11,609.90-15,985.23-10,245.75

Finding the Fourth Proportional to 11,609.90, 15,985.23 and 10,245.75

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Solution

The fourth proportional to 11,609.90, 15,985.23 and 10,245.75 is: 14,106.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,609.90 : 15,985.23 = 10,245.75 : x
  2. Step 2: Convert to fraction form
    11,609.90/15,985.23 = 10,245.75/x
  3. Step 3: Cross multiply
    11,609.90x = 15,985.23 × 10,245.75
  4. Step 4: Simplify right side
    11,609.90x = 163,780,670.27
  5. Step 5: Solve for x
    x = 163,780,670.27/11,609.90
  6. Step 6: Final answer
    x = 14,106.98

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1.5x scale

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.