Home / 19,257.10-28,885.65-11,772.70

Finding the Fourth Proportional to 19,257.10, 28,885.65 and 11,772.70

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Solution

The fourth proportional to 19,257.10, 28,885.65 and 11,772.70 is: 17,659.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,257.10 : 28,885.65 = 11,772.70 : x
  2. Step 2: Convert to fraction form
    19,257.10/28,885.65 = 11,772.70/x
  3. Step 3: Cross multiply
    19,257.10x = 28,885.65 × 11,772.70
  4. Step 4: Simplify right side
    19,257.10x = 340,062,091.76
  5. Step 5: Solve for x
    x = 340,062,091.76/19,257.10
  6. Step 6: Final answer
    x = 17,659.05

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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.