Home / 12,008.40-17,994.68-7,395.28

Finding the Fourth Proportional to 12,008.40, 17,994.68 and 7,395.28

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Solution

The fourth proportional to 12,008.40, 17,994.68 and 7,395.28 is: 11,081.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,008.40 : 17,994.68 = 7,395.28 : x
  2. Step 2: Convert to fraction form
    12,008.40/17,994.68 = 7,395.28/x
  3. Step 3: Cross multiply
    12,008.40x = 17,994.68 × 7,395.28
  4. Step 4: Simplify right side
    12,008.40x = 133,075,697.11
  5. Step 5: Solve for x
    x = 133,075,697.11/12,008.40
  6. Step 6: Final answer
    x = 11,081.88

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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.