Home / 12,272.77-16,947.26-9,123.49

Finding the Fourth Proportional to 12,272.77, 16,947.26 and 9,123.49

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Solution

The fourth proportional to 12,272.77, 16,947.26 and 9,123.49 is: 12,598.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,272.77 : 16,947.26 = 9,123.49 : x
  2. Step 2: Convert to fraction form
    12,272.77/16,947.26 = 9,123.49/x
  3. Step 3: Cross multiply
    12,272.77x = 16,947.26 × 9,123.49
  4. Step 4: Simplify right side
    12,272.77x = 154,618,157.14
  5. Step 5: Solve for x
    x = 154,618,157.14/12,272.77
  6. Step 6: Final answer
    x = 12,598.47

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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.