Home / 19,215.84-28,830.72-7,537.04

Finding the Fourth Proportional to 19,215.84, 28,830.72 and 7,537.04

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Solution

The fourth proportional to 19,215.84, 28,830.72 and 7,537.04 is: 11,308.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,215.84 : 28,830.72 = 7,537.04 : x
  2. Step 2: Convert to fraction form
    19,215.84/28,830.72 = 7,537.04/x
  3. Step 3: Cross multiply
    19,215.84x = 28,830.72 × 7,537.04
  4. Step 4: Simplify right side
    19,215.84x = 217,298,289.87
  5. Step 5: Solve for x
    x = 217,298,289.87/19,215.84
  6. Step 6: Final answer
    x = 11,308.29

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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.