Home / 17,009.40-25,535.70-9,118.20

Finding the Fourth Proportional to 17,009.40, 25,535.70 and 9,118.20

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Solution

The fourth proportional to 17,009.40, 25,535.70 and 9,118.20 is: 13,688.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,009.40 : 25,535.70 = 9,118.20 : x
  2. Step 2: Convert to fraction form
    17,009.40/25,535.70 = 9,118.20/x
  3. Step 3: Cross multiply
    17,009.40x = 25,535.70 × 9,118.20
  4. Step 4: Simplify right side
    17,009.40x = 232,839,619.74
  5. Step 5: Solve for x
    x = 232,839,619.74/17,009.40
  6. Step 6: Final answer
    x = 13,688.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.