Home / 12,424.16-17,145.21-7,047.59

Finding the Fourth Proportional to 12,424.16, 17,145.21 and 7,047.59

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Solution

The fourth proportional to 12,424.16, 17,145.21 and 7,047.59 is: 9,725.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,424.16 : 17,145.21 = 7,047.59 : x
  2. Step 2: Convert to fraction form
    12,424.16/17,145.21 = 7,047.59/x
  3. Step 3: Cross multiply
    12,424.16x = 17,145.21 × 7,047.59
  4. Step 4: Simplify right side
    12,424.16x = 120,832,324.82
  5. Step 5: Solve for x
    x = 120,832,324.82/12,424.16
  6. Step 6: Final answer
    x = 9,725.60

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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.