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Finding the Fourth Proportional to 12,647.08, 17,454.18 and 9,011.08

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Solution

The fourth proportional to 12,647.08, 17,454.18 and 9,011.08 is: 12,436.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,647.08 : 17,454.18 = 9,011.08 : x
  2. Step 2: Convert to fraction form
    12,647.08/17,454.18 = 9,011.08/x
  3. Step 3: Cross multiply
    12,647.08x = 17,454.18 × 9,011.08
  4. Step 4: Simplify right side
    12,647.08x = 157,281,012.31
  5. Step 5: Solve for x
    x = 157,281,012.31/12,647.08
  6. Step 6: Final answer
    x = 12,436.15

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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.