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Finding the Fourth Proportional to 14,959.16, 20,643.82 and 8,245.08

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Solution

The fourth proportional to 14,959.16, 20,643.82 and 8,245.08 is: 11,378.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,959.16 : 20,643.82 = 8,245.08 : x
  2. Step 2: Convert to fraction form
    14,959.16/20,643.82 = 8,245.08/x
  3. Step 3: Cross multiply
    14,959.16x = 20,643.82 × 8,245.08
  4. Step 4: Simplify right side
    14,959.16x = 170,209,947.41
  5. Step 5: Solve for x
    x = 170,209,947.41/14,959.16
  6. Step 6: Final answer
    x = 11,378.31

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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.