Home / 15,211.62-21,006.40-14,383.29

Finding the Fourth Proportional to 15,211.62, 21,006.40 and 14,383.29

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Solution

The fourth proportional to 15,211.62, 21,006.40 and 14,383.29 is: 19,862.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,211.62 : 21,006.40 = 14,383.29 : x
  2. Step 2: Convert to fraction form
    15,211.62/21,006.40 = 14,383.29/x
  3. Step 3: Cross multiply
    15,211.62x = 21,006.40 × 14,383.29
  4. Step 4: Simplify right side
    15,211.62x = 302,141,143.06
  5. Step 5: Solve for x
    x = 302,141,143.06/15,211.62
  6. Step 6: Final answer
    x = 19,862.52

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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.