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Finding the Fourth Proportional to 15,208.80, 22,861.80 and 10,856.40

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Solution

The fourth proportional to 15,208.80, 22,861.80 and 10,856.40 is: 16,319.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,208.80 : 22,861.80 = 10,856.40 : x
  2. Step 2: Convert to fraction form
    15,208.80/22,861.80 = 10,856.40/x
  3. Step 3: Cross multiply
    15,208.80x = 22,861.80 × 10,856.40
  4. Step 4: Simplify right side
    15,208.80x = 248,196,845.52
  5. Step 5: Solve for x
    x = 248,196,845.52/15,208.80
  6. Step 6: Final answer
    x = 16,319.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.