Home / 13,862.56-20,762.70-10,720.48

Finding the Fourth Proportional to 13,862.56, 20,762.70 and 10,720.48

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Solution

The fourth proportional to 13,862.56, 20,762.70 and 10,720.48 is: 16,056.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,862.56 : 20,762.70 = 10,720.48 : x
  2. Step 2: Convert to fraction form
    13,862.56/20,762.70 = 10,720.48/x
  3. Step 3: Cross multiply
    13,862.56x = 20,762.70 × 10,720.48
  4. Step 4: Simplify right side
    13,862.56x = 222,586,110.10
  5. Step 5: Solve for x
    x = 222,586,110.10/13,862.56
  6. Step 6: Final answer
    x = 16,056.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.