Home / 12,933.60-17,850.70-7,628.10

Finding the Fourth Proportional to 12,933.60, 17,850.70 and 7,628.10

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Solution

The fourth proportional to 12,933.60, 17,850.70 and 7,628.10 is: 10,528.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,933.60 : 17,850.70 = 7,628.10 : x
  2. Step 2: Convert to fraction form
    12,933.60/17,850.70 = 7,628.10/x
  3. Step 3: Cross multiply
    12,933.60x = 17,850.70 × 7,628.10
  4. Step 4: Simplify right side
    12,933.60x = 136,166,924.67
  5. Step 5: Solve for x
    x = 136,166,924.67/12,933.60
  6. Step 6: Final answer
    x = 10,528.15

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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.