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Finding the Fourth Proportional to 12,762.66, 17,612.38 and 7,097.32

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Solution

The fourth proportional to 12,762.66, 17,612.38 and 7,097.32 is: 9,794.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,762.66 : 17,612.38 = 7,097.32 : x
  2. Step 2: Convert to fraction form
    12,762.66/17,612.38 = 7,097.32/x
  3. Step 3: Cross multiply
    12,762.66x = 17,612.38 × 7,097.32
  4. Step 4: Simplify right side
    12,762.66x = 125,000,696.82
  5. Step 5: Solve for x
    x = 125,000,696.82/12,762.66
  6. Step 6: Final answer
    x = 9,794.25

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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.