Home / 11,387.40-17,051.25-9,154.35

Finding the Fourth Proportional to 11,387.40, 17,051.25 and 9,154.35

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Solution

The fourth proportional to 11,387.40, 17,051.25 and 9,154.35 is: 13,707.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,387.40 : 17,051.25 = 9,154.35 : x
  2. Step 2: Convert to fraction form
    11,387.40/17,051.25 = 9,154.35/x
  3. Step 3: Cross multiply
    11,387.40x = 17,051.25 × 9,154.35
  4. Step 4: Simplify right side
    11,387.40x = 156,093,110.44
  5. Step 5: Solve for x
    x = 156,093,110.44/11,387.40
  6. Step 6: Final answer
    x = 13,707.53

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1.5x scale

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.