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Finding the Fourth Proportional to 10,668.91, 14,721.92 and 7,519.63

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Solution

The fourth proportional to 10,668.91, 14,721.92 and 7,519.63 is: 10,376.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,668.91 : 14,721.92 = 7,519.63 : x
  2. Step 2: Convert to fraction form
    10,668.91/14,721.92 = 7,519.63/x
  3. Step 3: Cross multiply
    10,668.91x = 14,721.92 × 7,519.63
  4. Step 4: Simplify right side
    10,668.91x = 110,703,391.29
  5. Step 5: Solve for x
    x = 110,703,391.29/10,668.91
  6. Step 6: Final answer
    x = 10,376.26

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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.