Home / 13,263.29-18,293.96-11,260.05

Finding the Fourth Proportional to 13,263.29, 18,293.96 and 11,260.05

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Solution

The fourth proportional to 13,263.29, 18,293.96 and 11,260.05 is: 15,530.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,263.29 : 18,293.96 = 11,260.05 : x
  2. Step 2: Convert to fraction form
    13,263.29/18,293.96 = 11,260.05/x
  3. Step 3: Cross multiply
    13,263.29x = 18,293.96 × 11,260.05
  4. Step 4: Simplify right side
    13,263.29x = 205,990,848.00
  5. Step 5: Solve for x
    x = 205,990,848.00/13,263.29
  6. Step 6: Final answer
    x = 15,530.91

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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.