Home / 16,390.35-22,619.34-9,317.43

Finding the Fourth Proportional to 16,390.35, 22,619.34 and 9,317.43

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Solution

The fourth proportional to 16,390.35, 22,619.34 and 9,317.43 is: 12,858.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,390.35 : 22,619.34 = 9,317.43 : x
  2. Step 2: Convert to fraction form
    16,390.35/22,619.34 = 9,317.43/x
  3. Step 3: Cross multiply
    16,390.35x = 22,619.34 × 9,317.43
  4. Step 4: Simplify right side
    16,390.35x = 210,754,117.10
  5. Step 5: Solve for x
    x = 210,754,117.10/16,390.35
  6. Step 6: Final answer
    x = 12,858.43

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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.