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Finding the Fourth Proportional to 12,472.83, 17,212.86 and 6,807.94

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Solution

The fourth proportional to 12,472.83, 17,212.86 and 6,807.94 is: 9,395.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,472.83 : 17,212.86 = 6,807.94 : x
  2. Step 2: Convert to fraction form
    12,472.83/17,212.86 = 6,807.94/x
  3. Step 3: Cross multiply
    12,472.83x = 17,212.86 × 6,807.94
  4. Step 4: Simplify right side
    12,472.83x = 117,184,075.08
  5. Step 5: Solve for x
    x = 117,184,075.08/12,472.83
  6. Step 6: Final answer
    x = 9,395.15

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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.