Home / 10,521.62-14,518.54-5,805.90

Finding the Fourth Proportional to 10,521.62, 14,518.54 and 5,805.90

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Solution

The fourth proportional to 10,521.62, 14,518.54 and 5,805.90 is: 8,011.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,521.62 : 14,518.54 = 5,805.90 : x
  2. Step 2: Convert to fraction form
    10,521.62/14,518.54 = 5,805.90/x
  3. Step 3: Cross multiply
    10,521.62x = 14,518.54 × 5,805.90
  4. Step 4: Simplify right side
    10,521.62x = 84,293,198.64
  5. Step 5: Solve for x
    x = 84,293,198.64/10,521.62
  6. Step 6: Final answer
    x = 8,011.43

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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.