Home / 12,507.28-18,765.96-4,718.32

Finding the Fourth Proportional to 12,507.28, 18,765.96 and 4,718.32

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Solution

The fourth proportional to 12,507.28, 18,765.96 and 4,718.32 is: 7,079.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,507.28 : 18,765.96 = 4,718.32 : x
  2. Step 2: Convert to fraction form
    12,507.28/18,765.96 = 4,718.32/x
  3. Step 3: Cross multiply
    12,507.28x = 18,765.96 × 4,718.32
  4. Step 4: Simplify right side
    12,507.28x = 88,543,804.39
  5. Step 5: Solve for x
    x = 88,543,804.39/12,507.28
  6. Step 6: Final answer
    x = 7,079.38

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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.