Home / 12,340.09-17,028.19-7,557.85

Finding the Fourth Proportional to 12,340.09, 17,028.19 and 7,557.85

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Solution

The fourth proportional to 12,340.09, 17,028.19 and 7,557.85 is: 10,429.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,340.09 : 17,028.19 = 7,557.85 : x
  2. Step 2: Convert to fraction form
    12,340.09/17,028.19 = 7,557.85/x
  3. Step 3: Cross multiply
    12,340.09x = 17,028.19 × 7,557.85
  4. Step 4: Simplify right side
    12,340.09x = 128,696,536.52
  5. Step 5: Solve for x
    x = 128,696,536.52/12,340.09
  6. Step 6: Final answer
    x = 10,429.14

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Half scale
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Double scale
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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.