Home / 18,867.34-26,035.12-11,312.26

Finding the Fourth Proportional to 18,867.34, 26,035.12 and 11,312.26

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Solution

The fourth proportional to 18,867.34, 26,035.12 and 11,312.26 is: 15,609.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,867.34 : 26,035.12 = 11,312.26 : x
  2. Step 2: Convert to fraction form
    18,867.34/26,035.12 = 11,312.26/x
  3. Step 3: Cross multiply
    18,867.34x = 26,035.12 × 11,312.26
  4. Step 4: Simplify right side
    18,867.34x = 294,516,046.57
  5. Step 5: Solve for x
    x = 294,516,046.57/18,867.34
  6. Step 6: Final answer
    x = 15,609.83

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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.