Home / 14,456.85-19,953.79-9,412.29

Finding the Fourth Proportional to 14,456.85, 19,953.79 and 9,412.29

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Solution

The fourth proportional to 14,456.85, 19,953.79 and 9,412.29 is: 12,991.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,456.85 : 19,953.79 = 9,412.29 : x
  2. Step 2: Convert to fraction form
    14,456.85/19,953.79 = 9,412.29/x
  3. Step 3: Cross multiply
    14,456.85x = 19,953.79 × 9,412.29
  4. Step 4: Simplify right side
    14,456.85x = 187,810,884.43
  5. Step 5: Solve for x
    x = 187,810,884.43/14,456.85
  6. Step 6: Final answer
    x = 12,991.14

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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.