Home / 15,453.51-21,319.78-10,082.25

Finding the Fourth Proportional to 15,453.51, 21,319.78 and 10,082.25

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Solution

The fourth proportional to 15,453.51, 21,319.78 and 10,082.25 is: 13,909.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,453.51 : 21,319.78 = 10,082.25 : x
  2. Step 2: Convert to fraction form
    15,453.51/21,319.78 = 10,082.25/x
  3. Step 3: Cross multiply
    15,453.51x = 21,319.78 × 10,082.25
  4. Step 4: Simplify right side
    15,453.51x = 214,951,314.00
  5. Step 5: Solve for x
    x = 214,951,314.00/15,453.51
  6. Step 6: Final answer
    x = 13,909.55

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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.