Home / 15,334.86-21,161.57-8,528.85

Finding the Fourth Proportional to 15,334.86, 21,161.57 and 8,528.85

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Solution

The fourth proportional to 15,334.86, 21,161.57 and 8,528.85 is: 11,769.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,334.86 : 21,161.57 = 8,528.85 : x
  2. Step 2: Convert to fraction form
    15,334.86/21,161.57 = 8,528.85/x
  3. Step 3: Cross multiply
    15,334.86x = 21,161.57 × 8,528.85
  4. Step 4: Simplify right side
    15,334.86x = 180,483,861.63
  5. Step 5: Solve for x
    x = 180,483,861.63/15,334.86
  6. Step 6: Final answer
    x = 11,769.51

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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.