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Finding the Fourth Proportional to 12,509.52, 17,262.36 and 6,920.52

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Solution

The fourth proportional to 12,509.52, 17,262.36 and 6,920.52 is: 9,549.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,509.52 : 17,262.36 = 6,920.52 : x
  2. Step 2: Convert to fraction form
    12,509.52/17,262.36 = 6,920.52/x
  3. Step 3: Cross multiply
    12,509.52x = 17,262.36 × 6,920.52
  4. Step 4: Simplify right side
    12,509.52x = 119,464,507.63
  5. Step 5: Solve for x
    x = 119,464,507.63/12,509.52
  6. Step 6: Final answer
    x = 9,549.89

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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.