Home / 15,372.12-21,202.62-10,265.07

Finding the Fourth Proportional to 15,372.12, 21,202.62 and 10,265.07

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Solution

The fourth proportional to 15,372.12, 21,202.62 and 10,265.07 is: 14,158.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,372.12 : 21,202.62 = 10,265.07 : x
  2. Step 2: Convert to fraction form
    15,372.12/21,202.62 = 10,265.07/x
  3. Step 3: Cross multiply
    15,372.12x = 21,202.62 × 10,265.07
  4. Step 4: Simplify right side
    15,372.12x = 217,646,378.48
  5. Step 5: Solve for x
    x = 217,646,378.48/15,372.12
  6. Step 6: Final answer
    x = 14,158.51

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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.