Home / 15,827.67-21,821.88-10,152.09

Finding the Fourth Proportional to 15,827.67, 21,821.88 and 10,152.09

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Solution

The fourth proportional to 15,827.67, 21,821.88 and 10,152.09 is: 13,996.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,827.67 : 21,821.88 = 10,152.09 : x
  2. Step 2: Convert to fraction form
    15,827.67/21,821.88 = 10,152.09/x
  3. Step 3: Cross multiply
    15,827.67x = 21,821.88 × 10,152.09
  4. Step 4: Simplify right side
    15,827.67x = 221,537,689.73
  5. Step 5: Solve for x
    x = 221,537,689.73/15,827.67
  6. Step 6: Final answer
    x = 13,996.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.