Home / 13,320.96-19,990.08-5,929.92

Finding the Fourth Proportional to 13,320.96, 19,990.08 and 5,929.92

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Solution

The fourth proportional to 13,320.96, 19,990.08 and 5,929.92 is: 8,898.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320.96 : 19,990.08 = 5,929.92 : x
  2. Step 2: Convert to fraction form
    13,320.96/19,990.08 = 5,929.92/x
  3. Step 3: Cross multiply
    13,320.96x = 19,990.08 × 5,929.92
  4. Step 4: Simplify right side
    13,320.96x = 118,539,575.19
  5. Step 5: Solve for x
    x = 118,539,575.19/13,320.96
  6. Step 6: Final answer
    x = 8,898.73

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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.