Home / 12,506.30-18,759.50-10,155.17

Finding the Fourth Proportional to 12,506.30, 18,759.50 and 10,155.17

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Solution

The fourth proportional to 12,506.30, 18,759.50 and 10,155.17 is: 15,232.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,506.30 : 18,759.50 = 10,155.17 : x
  2. Step 2: Convert to fraction form
    12,506.30/18,759.50 = 10,155.17/x
  3. Step 3: Cross multiply
    12,506.30x = 18,759.50 × 10,155.17
  4. Step 4: Simplify right side
    12,506.30x = 190,505,945.82
  5. Step 5: Solve for x
    x = 190,505,945.82/12,506.30
  6. Step 6: Final answer
    x = 15,232.80

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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.