Home / 13,975.08-19,285.77-7,687.50

Finding the Fourth Proportional to 13,975.08, 19,285.77 and 7,687.50

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Solution

The fourth proportional to 13,975.08, 19,285.77 and 7,687.50 is: 10,608.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.08 : 19,285.77 = 7,687.50 : x
  2. Step 2: Convert to fraction form
    13,975.08/19,285.77 = 7,687.50/x
  3. Step 3: Cross multiply
    13,975.08x = 19,285.77 × 7,687.50
  4. Step 4: Simplify right side
    13,975.08x = 148,259,356.88
  5. Step 5: Solve for x
    x = 148,259,356.88/13,975.08
  6. Step 6: Final answer
    x = 10,608.84

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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.