Home / 9,438.98-13,025.76-5,190.32

Finding the Fourth Proportional to 9,438.98, 13,025.76 and 5,190.32

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Solution

The fourth proportional to 9,438.98, 13,025.76 and 5,190.32 is: 7,162.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,438.98 : 13,025.76 = 5,190.32 : x
  2. Step 2: Convert to fraction form
    9,438.98/13,025.76 = 5,190.32/x
  3. Step 3: Cross multiply
    9,438.98x = 13,025.76 × 5,190.32
  4. Step 4: Simplify right side
    9,438.98x = 67,607,862.64
  5. Step 5: Solve for x
    x = 67,607,862.64/9,438.98
  6. Step 6: Final answer
    x = 7,162.62

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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.