Home / 15,219.62-21,004.16-9,250.13

Finding the Fourth Proportional to 15,219.62, 21,004.16 and 9,250.13

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Solution

The fourth proportional to 15,219.62, 21,004.16 and 9,250.13 is: 12,765.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,219.62 : 21,004.16 = 9,250.13 : x
  2. Step 2: Convert to fraction form
    15,219.62/21,004.16 = 9,250.13/x
  3. Step 3: Cross multiply
    15,219.62x = 21,004.16 × 9,250.13
  4. Step 4: Simplify right side
    15,219.62x = 194,291,164.29
  5. Step 5: Solve for x
    x = 194,291,164.29/15,219.62
  6. Step 6: Final answer
    x = 12,765.84

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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.