Home / 13,215.39-19,822.11-4,891.53

Finding the Fourth Proportional to 13,215.39, 19,822.11 and 4,891.53

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Solution

The fourth proportional to 13,215.39, 19,822.11 and 4,891.53 is: 7,336.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,215.39 : 19,822.11 = 4,891.53 : x
  2. Step 2: Convert to fraction form
    13,215.39/19,822.11 = 4,891.53/x
  3. Step 3: Cross multiply
    13,215.39x = 19,822.11 × 4,891.53
  4. Step 4: Simplify right side
    13,215.39x = 96,960,445.73
  5. Step 5: Solve for x
    x = 96,960,445.73/13,215.39
  6. Step 6: Final answer
    x = 7,336.93

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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.