Home / 15,370.14-21,201.80-9,994.02

Finding the Fourth Proportional to 15,370.14, 21,201.80 and 9,994.02

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Solution

The fourth proportional to 15,370.14, 21,201.80 and 9,994.02 is: 13,785.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,370.14 : 21,201.80 = 9,994.02 : x
  2. Step 2: Convert to fraction form
    15,370.14/21,201.80 = 9,994.02/x
  3. Step 3: Cross multiply
    15,370.14x = 21,201.80 × 9,994.02
  4. Step 4: Simplify right side
    15,370.14x = 211,891,213.24
  5. Step 5: Solve for x
    x = 211,891,213.24/15,370.14
  6. Step 6: Final answer
    x = 13,785.90

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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.