Home / 15,344.20-21,174.18-9,054.28

Finding the Fourth Proportional to 15,344.20, 21,174.18 and 9,054.28

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Solution

The fourth proportional to 15,344.20, 21,174.18 and 9,054.28 is: 12,494.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,344.20 : 21,174.18 = 9,054.28 : x
  2. Step 2: Convert to fraction form
    15,344.20/21,174.18 = 9,054.28/x
  3. Step 3: Cross multiply
    15,344.20x = 21,174.18 × 9,054.28
  4. Step 4: Simplify right side
    15,344.20x = 191,716,954.49
  5. Step 5: Solve for x
    x = 191,716,954.49/15,344.20
  6. Step 6: Final answer
    x = 12,494.42

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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.