Home / 12,417.54-17,137.18-7,114.08

Finding the Fourth Proportional to 12,417.54, 17,137.18 and 7,114.08

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Solution

The fourth proportional to 12,417.54, 17,137.18 and 7,114.08 is: 9,817.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,417.54 : 17,137.18 = 7,114.08 : x
  2. Step 2: Convert to fraction form
    12,417.54/17,137.18 = 7,114.08/x
  3. Step 3: Cross multiply
    12,417.54x = 17,137.18 × 7,114.08
  4. Step 4: Simplify right side
    12,417.54x = 121,915,269.49
  5. Step 5: Solve for x
    x = 121,915,269.49/12,417.54
  6. Step 6: Final answer
    x = 9,817.99

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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.