Home / 15,624.96-21,563.04-8,911.68

Finding the Fourth Proportional to 15,624.96, 21,563.04 and 8,911.68

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Solution

The fourth proportional to 15,624.96, 21,563.04 and 8,911.68 is: 12,298.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,624.96 : 21,563.04 = 8,911.68 : x
  2. Step 2: Convert to fraction form
    15,624.96/21,563.04 = 8,911.68/x
  3. Step 3: Cross multiply
    15,624.96x = 21,563.04 × 8,911.68
  4. Step 4: Simplify right side
    15,624.96x = 192,162,912.31
  5. Step 5: Solve for x
    x = 192,162,912.31/15,624.96
  6. Step 6: Final answer
    x = 12,298.46

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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.