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Finding the Fourth Proportional to 10,423.92, 14,388.93 and 6,891.93

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Solution

The fourth proportional to 10,423.92, 14,388.93 and 6,891.93 is: 9,513.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,423.92 : 14,388.93 = 6,891.93 : x
  2. Step 2: Convert to fraction form
    10,423.92/14,388.93 = 6,891.93/x
  3. Step 3: Cross multiply
    10,423.92x = 14,388.93 × 6,891.93
  4. Step 4: Simplify right side
    10,423.92x = 99,167,498.33
  5. Step 5: Solve for x
    x = 99,167,498.33/10,423.92
  6. Step 6: Final answer
    x = 9,513.46

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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.