Home / 11,539.41-15,905.67-9,017.10

Finding the Fourth Proportional to 11,539.41, 15,905.67 and 9,017.10

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Solution

The fourth proportional to 11,539.41, 15,905.67 and 9,017.10 is: 12,428.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,539.41 : 15,905.67 = 9,017.10 : x
  2. Step 2: Convert to fraction form
    11,539.41/15,905.67 = 9,017.10/x
  3. Step 3: Cross multiply
    11,539.41x = 15,905.67 × 9,017.10
  4. Step 4: Simplify right side
    11,539.41x = 143,423,016.96
  5. Step 5: Solve for x
    x = 143,423,016.96/11,539.41
  6. Step 6: Final answer
    x = 12,428.97

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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.