Home / 12,252.39-16,907.64-7,215.45

Finding the Fourth Proportional to 12,252.39, 16,907.64 and 7,215.45

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Solution

The fourth proportional to 12,252.39, 16,907.64 and 7,215.45 is: 9,956.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,252.39 : 16,907.64 = 7,215.45 : x
  2. Step 2: Convert to fraction form
    12,252.39/16,907.64 = 7,215.45/x
  3. Step 3: Cross multiply
    12,252.39x = 16,907.64 × 7,215.45
  4. Step 4: Simplify right side
    12,252.39x = 121,996,283.23
  5. Step 5: Solve for x
    x = 121,996,283.23/12,252.39
  6. Step 6: Final answer
    x = 9,956.94

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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.