Home / 13,880.92-19,164.95-8,217.50

Finding the Fourth Proportional to 13,880.92, 19,164.95 and 8,217.50

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Solution

The fourth proportional to 13,880.92, 19,164.95 and 8,217.50 is: 11,345.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,880.92 : 19,164.95 = 8,217.50 : x
  2. Step 2: Convert to fraction form
    13,880.92/19,164.95 = 8,217.50/x
  3. Step 3: Cross multiply
    13,880.92x = 19,164.95 × 8,217.50
  4. Step 4: Simplify right side
    13,880.92x = 157,488,024.55
  5. Step 5: Solve for x
    x = 157,488,024.55/13,880.92
  6. Step 6: Final answer
    x = 11,345.65

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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.