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Finding the Fourth Proportional to 12,354.01, 17,048.54 and 6,688.76

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Solution

The fourth proportional to 12,354.01, 17,048.54 and 6,688.76 is: 9,230.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,354.01 : 17,048.54 = 6,688.76 : x
  2. Step 2: Convert to fraction form
    12,354.01/17,048.54 = 6,688.76/x
  3. Step 3: Cross multiply
    12,354.01x = 17,048.54 × 6,688.76
  4. Step 4: Simplify right side
    12,354.01x = 114,033,473.72
  5. Step 5: Solve for x
    x = 114,033,473.72/12,354.01
  6. Step 6: Final answer
    x = 9,230.49

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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.