Home / 15,847.43-21,846.90-10,805.18

Finding the Fourth Proportional to 15,847.43, 21,846.90 and 10,805.18

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Solution

The fourth proportional to 15,847.43, 21,846.90 and 10,805.18 is: 14,895.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,847.43 : 21,846.90 = 10,805.18 : x
  2. Step 2: Convert to fraction form
    15,847.43/21,846.90 = 10,805.18/x
  3. Step 3: Cross multiply
    15,847.43x = 21,846.90 × 10,805.18
  4. Step 4: Simplify right side
    15,847.43x = 236,059,577.71
  5. Step 5: Solve for x
    x = 236,059,577.71/15,847.43
  6. Step 6: Final answer
    x = 14,895.77

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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.