Home / 11,321.61-15,624.81-6,607.41

Finding the Fourth Proportional to 11,321.61, 15,624.81 and 6,607.41

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Solution

The fourth proportional to 11,321.61, 15,624.81 and 6,607.41 is: 9,118.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,321.61 : 15,624.81 = 6,607.41 : x
  2. Step 2: Convert to fraction form
    11,321.61/15,624.81 = 6,607.41/x
  3. Step 3: Cross multiply
    11,321.61x = 15,624.81 × 6,607.41
  4. Step 4: Simplify right side
    11,321.61x = 103,239,525.84
  5. Step 5: Solve for x
    x = 103,239,525.84/11,321.61
  6. Step 6: Final answer
    x = 9,118.80

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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.