Home / 14,104.63-19,456.66-8,990.65

Finding the Fourth Proportional to 14,104.63, 19,456.66 and 8,990.65

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Solution

The fourth proportional to 14,104.63, 19,456.66 and 8,990.65 is: 12,402.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,104.63 : 19,456.66 = 8,990.65 : x
  2. Step 2: Convert to fraction form
    14,104.63/19,456.66 = 8,990.65/x
  3. Step 3: Cross multiply
    14,104.63x = 19,456.66 × 8,990.65
  4. Step 4: Simplify right side
    14,104.63x = 174,927,949.11
  5. Step 5: Solve for x
    x = 174,927,949.11/14,104.63
  6. Step 6: Final answer
    x = 12,402.17

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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.