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Finding the Fourth Proportional to 13,352.63, 18,428.24 and 7,763.63

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Solution

The fourth proportional to 13,352.63, 18,428.24 and 7,763.63 is: 10,714.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,352.63 : 18,428.24 = 7,763.63 : x
  2. Step 2: Convert to fraction form
    13,352.63/18,428.24 = 7,763.63/x
  3. Step 3: Cross multiply
    13,352.63x = 18,428.24 × 7,763.63
  4. Step 4: Simplify right side
    13,352.63x = 143,069,964.18
  5. Step 5: Solve for x
    x = 143,069,964.18/13,352.63
  6. Step 6: Final answer
    x = 10,714.74

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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.