Home / 13,281.12-19,915.92-4,513.68

Finding the Fourth Proportional to 13,281.12, 19,915.92 and 4,513.68

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Solution

The fourth proportional to 13,281.12, 19,915.92 and 4,513.68 is: 6,768.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,281.12 : 19,915.92 = 4,513.68 : x
  2. Step 2: Convert to fraction form
    13,281.12/19,915.92 = 4,513.68/x
  3. Step 3: Cross multiply
    13,281.12x = 19,915.92 × 4,513.68
  4. Step 4: Simplify right side
    13,281.12x = 89,894,089.79
  5. Step 5: Solve for x
    x = 89,894,089.79/13,281.12
  6. Step 6: Final answer
    x = 6,768.56

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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.