Home / 14,617.68-20,172.31-7,903.32

Finding the Fourth Proportional to 14,617.68, 20,172.31 and 7,903.32

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Solution

The fourth proportional to 14,617.68, 20,172.31 and 7,903.32 is: 10,906.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,617.68 : 20,172.31 = 7,903.32 : x
  2. Step 2: Convert to fraction form
    14,617.68/20,172.31 = 7,903.32/x
  3. Step 3: Cross multiply
    14,617.68x = 20,172.31 × 7,903.32
  4. Step 4: Simplify right side
    14,617.68x = 159,428,201.31
  5. Step 5: Solve for x
    x = 159,428,201.31/14,617.68
  6. Step 6: Final answer
    x = 10,906.53

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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.