Home / 13,272.32-18,315.33-7,303.43

Finding the Fourth Proportional to 13,272.32, 18,315.33 and 7,303.43

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Solution

The fourth proportional to 13,272.32, 18,315.33 and 7,303.43 is: 10,078.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,272.32 : 18,315.33 = 7,303.43 : x
  2. Step 2: Convert to fraction form
    13,272.32/18,315.33 = 7,303.43/x
  3. Step 3: Cross multiply
    13,272.32x = 18,315.33 × 7,303.43
  4. Step 4: Simplify right side
    13,272.32x = 133,764,730.58
  5. Step 5: Solve for x
    x = 133,764,730.58/13,272.32
  6. Step 6: Final answer
    x = 10,078.47

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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.