Home / 19,859.40-27,406.60-11,475.90

Finding the Fourth Proportional to 19,859.40, 27,406.60 and 11,475.90

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Solution

The fourth proportional to 19,859.40, 27,406.60 and 11,475.90 is: 15,837.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,859.40 : 27,406.60 = 11,475.90 : x
  2. Step 2: Convert to fraction form
    19,859.40/27,406.60 = 11,475.90/x
  3. Step 3: Cross multiply
    19,859.40x = 27,406.60 × 11,475.90
  4. Step 4: Simplify right side
    19,859.40x = 314,515,400.94
  5. Step 5: Solve for x
    x = 314,515,400.94/19,859.40
  6. Step 6: Final answer
    x = 15,837.10

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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.