Home / 13,261.27-18,291.14-11,257.96

Finding the Fourth Proportional to 13,261.27, 18,291.14 and 11,257.96

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Solution

The fourth proportional to 13,261.27, 18,291.14 and 11,257.96 is: 15,528.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,261.27 : 18,291.14 = 11,257.96 : x
  2. Step 2: Convert to fraction form
    13,261.27/18,291.14 = 11,257.96/x
  3. Step 3: Cross multiply
    13,261.27x = 18,291.14 × 11,257.96
  4. Step 4: Simplify right side
    13,261.27x = 205,920,980.08
  5. Step 5: Solve for x
    x = 205,920,980.08/13,261.27
  6. Step 6: Final answer
    x = 15,528.00

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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.