Home / 15,567.05-21,487.11-8,856.43

Finding the Fourth Proportional to 15,567.05, 21,487.11 and 8,856.43

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Solution

The fourth proportional to 15,567.05, 21,487.11 and 8,856.43 is: 12,224.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,567.05 : 21,487.11 = 8,856.43 : x
  2. Step 2: Convert to fraction form
    15,567.05/21,487.11 = 8,856.43/x
  3. Step 3: Cross multiply
    15,567.05x = 21,487.11 × 8,856.43
  4. Step 4: Simplify right side
    15,567.05x = 190,298,998.69
  5. Step 5: Solve for x
    x = 190,298,998.69/15,567.05
  6. Step 6: Final answer
    x = 12,224.47

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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.