Home / 13,277.40-19,926.90-12,845.40

Finding the Fourth Proportional to 13,277.40, 19,926.90 and 12,845.40

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Solution

The fourth proportional to 13,277.40, 19,926.90 and 12,845.40 is: 19,278.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,277.40 : 19,926.90 = 12,845.40 : x
  2. Step 2: Convert to fraction form
    13,277.40/19,926.90 = 12,845.40/x
  3. Step 3: Cross multiply
    13,277.40x = 19,926.90 × 12,845.40
  4. Step 4: Simplify right side
    13,277.40x = 255,969,001.26
  5. Step 5: Solve for x
    x = 255,969,001.26/13,277.40
  6. Step 6: Final answer
    x = 19,278.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.