Home / 15,624.96-21,561.60-8,551.68

Finding the Fourth Proportional to 15,624.96, 21,561.60 and 8,551.68

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Solution

The fourth proportional to 15,624.96, 21,561.60 and 8,551.68 is: 11,800.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,624.96 : 21,561.60 = 8,551.68 : x
  2. Step 2: Convert to fraction form
    15,624.96/21,561.60 = 8,551.68/x
  3. Step 3: Cross multiply
    15,624.96x = 21,561.60 × 8,551.68
  4. Step 4: Simplify right side
    15,624.96x = 184,387,903.49
  5. Step 5: Solve for x
    x = 184,387,903.49/15,624.96
  6. Step 6: Final answer
    x = 11,800.86

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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.