Home / 17,320.19-25,980.29-9,919.53

Finding the Fourth Proportional to 17,320.19, 25,980.29 and 9,919.53

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Solution

The fourth proportional to 17,320.19, 25,980.29 and 9,919.53 is: 14,879.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,320.19 : 25,980.29 = 9,919.53 : x
  2. Step 2: Convert to fraction form
    17,320.19/25,980.29 = 9,919.53/x
  3. Step 3: Cross multiply
    17,320.19x = 25,980.29 × 9,919.53
  4. Step 4: Simplify right side
    17,320.19x = 257,712,086.56
  5. Step 5: Solve for x
    x = 257,712,086.56/17,320.19
  6. Step 6: Final answer
    x = 14,879.29

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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.