Home / 13,363.32-18,441.68-8,655.80

Finding the Fourth Proportional to 13,363.32, 18,441.68 and 8,655.80

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Solution

The fourth proportional to 13,363.32, 18,441.68 and 8,655.80 is: 11,945.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,363.32 : 18,441.68 = 8,655.80 : x
  2. Step 2: Convert to fraction form
    13,363.32/18,441.68 = 8,655.80/x
  3. Step 3: Cross multiply
    13,363.32x = 18,441.68 × 8,655.80
  4. Step 4: Simplify right side
    13,363.32x = 159,627,423.18
  5. Step 5: Solve for x
    x = 159,627,423.18/13,363.32
  6. Step 6: Final answer
    x = 11,945.19

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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.