Home / 15,816.56-21,826.58-8,743.10

Finding the Fourth Proportional to 15,816.56, 21,826.58 and 8,743.10

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Solution

The fourth proportional to 15,816.56, 21,826.58 and 8,743.10 is: 12,065.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,816.56 : 21,826.58 = 8,743.10 : x
  2. Step 2: Convert to fraction form
    15,816.56/21,826.58 = 8,743.10/x
  3. Step 3: Cross multiply
    15,816.56x = 21,826.58 × 8,743.10
  4. Step 4: Simplify right side
    15,816.56x = 190,831,971.60
  5. Step 5: Solve for x
    x = 190,831,971.60/15,816.56
  6. Step 6: Final answer
    x = 12,065.33

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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.