Home / 15,869.03-21,889.31-10,211.13

Finding the Fourth Proportional to 15,869.03, 21,889.31 and 10,211.13

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Solution

The fourth proportional to 15,869.03, 21,889.31 and 10,211.13 is: 14,084.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,869.03 : 21,889.31 = 10,211.13 : x
  2. Step 2: Convert to fraction form
    15,869.03/21,889.31 = 10,211.13/x
  3. Step 3: Cross multiply
    15,869.03x = 21,889.31 × 10,211.13
  4. Step 4: Simplify right side
    15,869.03x = 223,514,538.96
  5. Step 5: Solve for x
    x = 223,514,538.96/15,869.03
  6. Step 6: Final answer
    x = 14,084.96

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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.