Home / 7,476.90-11,215.23-1,929.77

Finding the Fourth Proportional to 7,476.90, 11,215.23 and 1,929.77

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Solution

The fourth proportional to 7,476.90, 11,215.23 and 1,929.77 is: 2,894.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,476.90 : 11,215.23 = 1,929.77 : x
  2. Step 2: Convert to fraction form
    7,476.90/11,215.23 = 1,929.77/x
  3. Step 3: Cross multiply
    7,476.90x = 11,215.23 × 1,929.77
  4. Step 4: Simplify right side
    7,476.90x = 21,642,814.40
  5. Step 5: Solve for x
    x = 21,642,814.40/7,476.90
  6. Step 6: Final answer
    x = 2,894.62

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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.