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Finding the Fourth Proportional to 7,358.63, 10,131.80 and 6,495.39

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Solution

The fourth proportional to 7,358.63, 10,131.80 and 6,495.39 is: 8,943.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,358.63 : 10,131.80 = 6,495.39 : x
  2. Step 2: Convert to fraction form
    7,358.63/10,131.80 = 6,495.39/x
  3. Step 3: Cross multiply
    7,358.63x = 10,131.80 × 6,495.39
  4. Step 4: Simplify right side
    7,358.63x = 65,809,959.93
  5. Step 5: Solve for x
    x = 65,809,959.93/7,358.63
  6. Step 6: Final answer
    x = 8,943.24

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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.