Home / 15,515.22-21,399.26-10,743.14

Finding the Fourth Proportional to 15,515.22, 21,399.26 and 10,743.14

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Solution

The fourth proportional to 15,515.22, 21,399.26 and 10,743.14 is: 14,817.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,515.22 : 21,399.26 = 10,743.14 : x
  2. Step 2: Convert to fraction form
    15,515.22/21,399.26 = 10,743.14/x
  3. Step 3: Cross multiply
    15,515.22x = 21,399.26 × 10,743.14
  4. Step 4: Simplify right side
    15,515.22x = 229,895,246.08
  5. Step 5: Solve for x
    x = 229,895,246.08/15,515.22
  6. Step 6: Final answer
    x = 14,817.40

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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.