Home / 15,567.43-21,487.62-8,856.80

Finding the Fourth Proportional to 15,567.43, 21,487.62 and 8,856.80

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Solution

The fourth proportional to 15,567.43, 21,487.62 and 8,856.80 is: 12,224.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,567.43 : 21,487.62 = 8,856.80 : x
  2. Step 2: Convert to fraction form
    15,567.43/21,487.62 = 8,856.80/x
  3. Step 3: Cross multiply
    15,567.43x = 21,487.62 × 8,856.80
  4. Step 4: Simplify right side
    15,567.43x = 190,311,639.75
  5. Step 5: Solve for x
    x = 190,311,639.75/15,567.43
  6. Step 6: Final answer
    x = 12,224.99

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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.