Home / 12,925.50-17,836.35-7,620.06

Finding the Fourth Proportional to 12,925.50, 17,836.35 and 7,620.06

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Solution

The fourth proportional to 12,925.50, 17,836.35 and 7,620.06 is: 10,515.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,925.50 : 17,836.35 = 7,620.06 : x
  2. Step 2: Convert to fraction form
    12,925.50/17,836.35 = 7,620.06/x
  3. Step 3: Cross multiply
    12,925.50x = 17,836.35 × 7,620.06
  4. Step 4: Simplify right side
    12,925.50x = 135,914,057.18
  5. Step 5: Solve for x
    x = 135,914,057.18/12,925.50
  6. Step 6: Final answer
    x = 10,515.19

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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.