Home / 11,232.46-15,480.12-9,001.72

Finding the Fourth Proportional to 11,232.46, 15,480.12 and 9,001.72

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Solution

The fourth proportional to 11,232.46, 15,480.12 and 9,001.72 is: 12,405.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,232.46 : 15,480.12 = 9,001.72 : x
  2. Step 2: Convert to fraction form
    11,232.46/15,480.12 = 9,001.72/x
  3. Step 3: Cross multiply
    11,232.46x = 15,480.12 × 9,001.72
  4. Step 4: Simplify right side
    11,232.46x = 139,347,705.81
  5. Step 5: Solve for x
    x = 139,347,705.81/11,232.46
  6. Step 6: Final answer
    x = 12,405.80

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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.