Home / 18,759.85-25,877.53-13,008.35

Finding the Fourth Proportional to 18,759.85, 25,877.53 and 13,008.35

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Solution

The fourth proportional to 18,759.85, 25,877.53 and 13,008.35 is: 17,943.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,759.85 : 25,877.53 = 13,008.35 : x
  2. Step 2: Convert to fraction form
    18,759.85/25,877.53 = 13,008.35/x
  3. Step 3: Cross multiply
    18,759.85x = 25,877.53 × 13,008.35
  4. Step 4: Simplify right side
    18,759.85x = 336,623,829.60
  5. Step 5: Solve for x
    x = 336,623,829.60/18,759.85
  6. Step 6: Final answer
    x = 17,943.84

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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.