Home / 13,151.92-19,707.48-6,480.76

Finding the Fourth Proportional to 13,151.92, 19,707.48 and 6,480.76

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Solution

The fourth proportional to 13,151.92, 19,707.48 and 6,480.76 is: 9,711.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,151.92 : 19,707.48 = 6,480.76 : x
  2. Step 2: Convert to fraction form
    13,151.92/19,707.48 = 6,480.76/x
  3. Step 3: Cross multiply
    13,151.92x = 19,707.48 × 6,480.76
  4. Step 4: Simplify right side
    13,151.92x = 127,719,448.08
  5. Step 5: Solve for x
    x = 127,719,448.08/13,151.92
  6. Step 6: Final answer
    x = 9,711.09

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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.