Home / 14,149.07-21,208.81-7,899.92

Finding the Fourth Proportional to 14,149.07, 21,208.81 and 7,899.92

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Solution

The fourth proportional to 14,149.07, 21,208.81 and 7,899.92 is: 11,841.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,149.07 : 21,208.81 = 7,899.92 : x
  2. Step 2: Convert to fraction form
    14,149.07/21,208.81 = 7,899.92/x
  3. Step 3: Cross multiply
    14,149.07x = 21,208.81 × 7,899.92
  4. Step 4: Simplify right side
    14,149.07x = 167,547,902.30
  5. Step 5: Solve for x
    x = 167,547,902.30/14,149.07
  6. Step 6: Final answer
    x = 11,841.62

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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.