Home / 15,810.22-21,822.30-9,838.48

Finding the Fourth Proportional to 15,810.22, 21,822.30 and 9,838.48

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Solution

The fourth proportional to 15,810.22, 21,822.30 and 9,838.48 is: 13,579.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,810.22 : 21,822.30 = 9,838.48 : x
  2. Step 2: Convert to fraction form
    15,810.22/21,822.30 = 9,838.48/x
  3. Step 3: Cross multiply
    15,810.22x = 21,822.30 × 9,838.48
  4. Step 4: Simplify right side
    15,810.22x = 214,698,262.10
  5. Step 5: Solve for x
    x = 214,698,262.10/15,810.22
  6. Step 6: Final answer
    x = 13,579.71

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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.