Home / 19,407.68-26,781.11-11,857.67

Finding the Fourth Proportional to 19,407.68, 26,781.11 and 11,857.67

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Solution

The fourth proportional to 19,407.68, 26,781.11 and 11,857.67 is: 16,362.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,407.68 : 26,781.11 = 11,857.67 : x
  2. Step 2: Convert to fraction form
    19,407.68/26,781.11 = 11,857.67/x
  3. Step 3: Cross multiply
    19,407.68x = 26,781.11 × 11,857.67
  4. Step 4: Simplify right side
    19,407.68x = 317,561,516.32
  5. Step 5: Solve for x
    x = 317,561,516.32/19,407.68
  6. Step 6: Final answer
    x = 16,362.67

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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.