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Finding the Fourth Proportional to 14,480.02, 19,978.41 and 8,513.56

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Solution

The fourth proportional to 14,480.02, 19,978.41 and 8,513.56 is: 11,746.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,480.02 : 19,978.41 = 8,513.56 : x
  2. Step 2: Convert to fraction form
    14,480.02/19,978.41 = 8,513.56/x
  3. Step 3: Cross multiply
    14,480.02x = 19,978.41 × 8,513.56
  4. Step 4: Simplify right side
    14,480.02x = 170,087,392.24
  5. Step 5: Solve for x
    x = 170,087,392.24/14,480.02
  6. Step 6: Final answer
    x = 11,746.35

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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.