Home / 12,709.02-19,045.36-7,150.75

Finding the Fourth Proportional to 12,709.02, 19,045.36 and 7,150.75

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Solution

The fourth proportional to 12,709.02, 19,045.36 and 7,150.75 is: 10,715.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,709.02 : 19,045.36 = 7,150.75 : x
  2. Step 2: Convert to fraction form
    12,709.02/19,045.36 = 7,150.75/x
  3. Step 3: Cross multiply
    12,709.02x = 19,045.36 × 7,150.75
  4. Step 4: Simplify right side
    12,709.02x = 136,188,608.02
  5. Step 5: Solve for x
    x = 136,188,608.02/12,709.02
  6. Step 6: Final answer
    x = 10,715.90

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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.