Home / 12,417.36-17,121.96-9,054.24

Finding the Fourth Proportional to 12,417.36, 17,121.96 and 9,054.24

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Solution

The fourth proportional to 12,417.36, 17,121.96 and 9,054.24 is: 12,484.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,417.36 : 17,121.96 = 9,054.24 : x
  2. Step 2: Convert to fraction form
    12,417.36/17,121.96 = 9,054.24/x
  3. Step 3: Cross multiply
    12,417.36x = 17,121.96 × 9,054.24
  4. Step 4: Simplify right side
    12,417.36x = 155,026,335.11
  5. Step 5: Solve for x
    x = 155,026,335.11/12,417.36
  6. Step 6: Final answer
    x = 12,484.65

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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.