Home / 19,438.48-26,812.62-11,880.57

Finding the Fourth Proportional to 19,438.48, 26,812.62 and 11,880.57

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Solution

The fourth proportional to 19,438.48, 26,812.62 and 11,880.57 is: 16,387.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,438.48 : 26,812.62 = 11,880.57 : x
  2. Step 2: Convert to fraction form
    19,438.48/26,812.62 = 11,880.57/x
  3. Step 3: Cross multiply
    19,438.48x = 26,812.62 × 11,880.57
  4. Step 4: Simplify right side
    19,438.48x = 318,549,309.34
  5. Step 5: Solve for x
    x = 318,549,309.34/19,438.48
  6. Step 6: Final answer
    x = 16,387.56

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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.