Home / 19,038.88-26,276.48-11,489.56

Finding the Fourth Proportional to 19,038.88, 26,276.48 and 11,489.56

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Solution

The fourth proportional to 19,038.88, 26,276.48 and 11,489.56 is: 15,857.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,038.88 : 26,276.48 = 11,489.56 : x
  2. Step 2: Convert to fraction form
    19,038.88/26,276.48 = 11,489.56/x
  3. Step 3: Cross multiply
    19,038.88x = 26,276.48 × 11,489.56
  4. Step 4: Simplify right side
    19,038.88x = 301,905,193.55
  5. Step 5: Solve for x
    x = 301,905,193.55/19,038.88
  6. Step 6: Final answer
    x = 15,857.30

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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.