Home / 11,223.32-15,489.54-6,507.80

Finding the Fourth Proportional to 11,223.32, 15,489.54 and 6,507.80

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Solution

The fourth proportional to 11,223.32, 15,489.54 and 6,507.80 is: 8,981.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,223.32 : 15,489.54 = 6,507.80 : x
  2. Step 2: Convert to fraction form
    11,223.32/15,489.54 = 6,507.80/x
  3. Step 3: Cross multiply
    11,223.32x = 15,489.54 × 6,507.80
  4. Step 4: Simplify right side
    11,223.32x = 100,802,828.41
  5. Step 5: Solve for x
    x = 100,802,828.41/11,223.32
  6. Step 6: Final answer
    x = 8,981.55

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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.