Home / 15,810.50-21,816.60-8,735.96

Finding the Fourth Proportional to 15,810.50, 21,816.60 and 8,735.96

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Solution

The fourth proportional to 15,810.50, 21,816.60 and 8,735.96 is: 12,054.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,810.50 : 21,816.60 = 8,735.96 : x
  2. Step 2: Convert to fraction form
    15,810.50/21,816.60 = 8,735.96/x
  3. Step 3: Cross multiply
    15,810.50x = 21,816.60 × 8,735.96
  4. Step 4: Simplify right side
    15,810.50x = 190,588,944.94
  5. Step 5: Solve for x
    x = 190,588,944.94/15,810.50
  6. Step 6: Final answer
    x = 12,054.58

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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.