Home / 19,077.76-26,299.68-13,395.20

Finding the Fourth Proportional to 19,077.76, 26,299.68 and 13,395.20

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Solution

The fourth proportional to 19,077.76, 26,299.68 and 13,395.20 is: 18,465.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,077.76 : 26,299.68 = 13,395.20 : x
  2. Step 2: Convert to fraction form
    19,077.76/26,299.68 = 13,395.20/x
  3. Step 3: Cross multiply
    19,077.76x = 26,299.68 × 13,395.20
  4. Step 4: Simplify right side
    19,077.76x = 352,289,473.54
  5. Step 5: Solve for x
    x = 352,289,473.54/19,077.76
  6. Step 6: Final answer
    x = 18,465.98

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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.