Home / 19,215.43-28,827.60-7,528.75

Finding the Fourth Proportional to 19,215.43, 28,827.60 and 7,528.75

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Solution

The fourth proportional to 19,215.43, 28,827.60 and 7,528.75 is: 11,294.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,215.43 : 28,827.60 = 7,528.75 : x
  2. Step 2: Convert to fraction form
    19,215.43/28,827.60 = 7,528.75/x
  3. Step 3: Cross multiply
    19,215.43x = 28,827.60 × 7,528.75
  4. Step 4: Simplify right side
    19,215.43x = 217,035,793.50
  5. Step 5: Solve for x
    x = 217,035,793.50/19,215.43
  6. Step 6: Final answer
    x = 11,294.87

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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.