Home / 19,856.58-29,776.12-9,329.59

Finding the Fourth Proportional to 19,856.58, 29,776.12 and 9,329.59

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Solution

The fourth proportional to 19,856.58, 29,776.12 and 9,329.59 is: 13,990.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,856.58 : 29,776.12 = 9,329.59 : x
  2. Step 2: Convert to fraction form
    19,856.58/29,776.12 = 9,329.59/x
  3. Step 3: Cross multiply
    19,856.58x = 29,776.12 × 9,329.59
  4. Step 4: Simplify right side
    19,856.58x = 277,798,991.39
  5. Step 5: Solve for x
    x = 277,798,991.39/19,856.58
  6. Step 6: Final answer
    x = 13,990.27

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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.