Home / 14,403.45-19,878.46-8,031.07

Finding the Fourth Proportional to 14,403.45, 19,878.46 and 8,031.07

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Solution

The fourth proportional to 14,403.45, 19,878.46 and 8,031.07 is: 11,083.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,403.45 : 19,878.46 = 8,031.07 : x
  2. Step 2: Convert to fraction form
    14,403.45/19,878.46 = 8,031.07/x
  3. Step 3: Cross multiply
    14,403.45x = 19,878.46 × 8,031.07
  4. Step 4: Simplify right side
    14,403.45x = 159,645,409.61
  5. Step 5: Solve for x
    x = 159,645,409.61/14,403.45
  6. Step 6: Final answer
    x = 11,083.83

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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.