Home / 12,407.02-17,122.07-7,103.54

Finding the Fourth Proportional to 12,407.02, 17,122.07 and 7,103.54

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Solution

The fourth proportional to 12,407.02, 17,122.07 and 7,103.54 is: 9,803.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,407.02 : 17,122.07 = 7,103.54 : x
  2. Step 2: Convert to fraction form
    12,407.02/17,122.07 = 7,103.54/x
  3. Step 3: Cross multiply
    12,407.02x = 17,122.07 × 7,103.54
  4. Step 4: Simplify right side
    12,407.02x = 121,627,309.13
  5. Step 5: Solve for x
    x = 121,627,309.13/12,407.02
  6. Step 6: Final answer
    x = 9,803.10

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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.