Home / 13,356.52-19,997.76-6,750.40

Finding the Fourth Proportional to 13,356.52, 19,997.76 and 6,750.40

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Solution

The fourth proportional to 13,356.52, 19,997.76 and 6,750.40 is: 10,106.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,356.52 : 19,997.76 = 6,750.40 : x
  2. Step 2: Convert to fraction form
    13,356.52/19,997.76 = 6,750.40/x
  3. Step 3: Cross multiply
    13,356.52x = 19,997.76 × 6,750.40
  4. Step 4: Simplify right side
    13,356.52x = 134,992,879.10
  5. Step 5: Solve for x
    x = 134,992,879.10/13,356.52
  6. Step 6: Final answer
    x = 10,106.89

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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.