Home / 19,359.42-26,728.68-13,409.34

Finding the Fourth Proportional to 19,359.42, 26,728.68 and 13,409.34

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Solution

The fourth proportional to 19,359.42, 26,728.68 and 13,409.34 is: 18,513.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,359.42 : 26,728.68 = 13,409.34 : x
  2. Step 2: Convert to fraction form
    19,359.42/26,728.68 = 13,409.34/x
  3. Step 3: Cross multiply
    19,359.42x = 26,728.68 × 13,409.34
  4. Step 4: Simplify right side
    19,359.42x = 358,413,957.87
  5. Step 5: Solve for x
    x = 358,413,957.87/19,359.42
  6. Step 6: Final answer
    x = 18,513.67

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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.