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Finding the Fourth Proportional to 12,364.08, 17,064.08 and 6,987.63

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Solution

The fourth proportional to 12,364.08, 17,064.08 and 6,987.63 is: 9,643.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,364.08 : 17,064.08 = 6,987.63 : x
  2. Step 2: Convert to fraction form
    12,364.08/17,064.08 = 6,987.63/x
  3. Step 3: Cross multiply
    12,364.08x = 17,064.08 × 6,987.63
  4. Step 4: Simplify right side
    12,364.08x = 119,237,442.39
  5. Step 5: Solve for x
    x = 119,237,442.39/12,364.08
  6. Step 6: Final answer
    x = 9,643.86

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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.